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Microsoft virus. New versions revealed (2020 update)

removal by Lucia Danes - - | Type: Malware

Microsoft virus – a set of threats that misuse the name of Microsoft to swindle users' money or personal information

Microsoft virus
Microsoft virus - a term used to describe different types of threats which misuse the name of Microsoft

Microsoft virus is the name of different threats (scams, mostly) that are using the logo of Microsoft Corporation[1] to prove their legitimacy and trust. These malware series appear to be mostly scam applications that appear while browsing and start providing fake security alerts to urge users to call certified Microsoft technicians. Additionally, victims are asked to pay for the help which they don't even need. This is the main reason why crooks decided to misuse the company's name.

Due to the increasing rate of potentially suspicious and malicious infections that have been targetting Windows users via providing them with the original Microsoft logo, the Corporation itself released a guide on what kind of viruses are spread the most and how to prevent Microsoft virus and suspicious programs from sneaking into the targeted system.[2] However, the main thing to do is to disable the malicious master.exe or similar file and then reset the web browser.

Name Microsoft virus
Types Scams, malicious files
Related malware
  • Microsoft Warning Alert
  • Microsoft Edge virus
  • Malicious Microsoft macros
Aim To swindle personal information or money, inject malware on the targeted machine
Distribution techniques Scams related to Microsoft virus can be caused by adware or other potentially unwanted programs, malicious files, e.g. master.exe, often come as attachments to email spam
Browsers affected Microsoft Edge, Google Chrome, Internet Explorer, Mozilla Firefox can be filled with rogue extensions and other helper components
Targeted operating system Windows (all types of versions such as 7, 8, 10, etc.). However, the appearance of Microsoft malware is more common on Windows 10 as this OS is the most used one nowadays
Removal software Download a tool such as Reimage Reimage Cleaner Intego to detect all malicious entries and potentially unwanted content on your infected machine. After that, opt for the wanted removal method (automatical/manual)

Microsoft virus is a very wide term which overtakes various PUPs and cyber threats. Usually, cybercriminals deliver scams by misusing this name. Such rogue applications are also known as technical support scams.[3] By providing fake information on supposedly infected computers, hackers trick users into calling the given mobile phone number.

If the victim decides to make a call via the provided fake technical support number, anything can happen. Once users are connected with fake help experts, they might be urged to provide some personal details about themselves or be convinced to install rogue repair software. As you can see, this type of Microsoft virus might be spread for very tricky purposes.

If you experience Microsoft virus on your computer system urging you to call certified Microsoft technicians, make sure not to dial the fake phone number as revealing personal information might relate to data theft in the future. Also, cybercriminals might find a way how to remotely gain access to your computer system if you reveal some crucial details to these people.

Microsoft virus removal is the best thing to do once infected with malware or a PUP. If it is a scam which has been lately triggering your normal work, there supposedly is an adware program on your computer system or another suspicious application that has been forcing the scam message to appear whenever browsing the Internet.

You can use the help of Reimage Reimage Cleaner Intego to locate malicious or suspicious content on the infected machine. This should help you to remove Microsoft virus from your Windows OS. By the way, do not be surprised if you find some rogue content in web browser applications such as Chrome, Edge, Explorer, and Firefox that needs to be eliminated too.

Microsoft-based malware
Microsoft malware is Microsoft-themed virus that can appear on Windows computers and start claiming false things

However, there might be other more dangerous malware forms lurking under the name of Microsoft. For example, in 2018 there were reports released that malicious payload (which includes ransomware viruses and dangerous Trojan horses) was delivered through infectious Microsoft Office documents and files.

Spotting dangerous infections, especially trojan and ransomware-based ones, signifies about possible system damage. These types of Microsoft viruses are the rarest but the most dangerous ones. Such infections can relate to theft of personal information, money swindling, permanent damage of crucial computer software, system resource overuse.

For further information, these versions of Microsoft virus are carried via infected documents that come attached to email spam. It is very important to scan all received email messages together with attached files in case some malicious objects are hidden there. Better be too cautious than not careful at all.

Most popular versions of Microsoft virus


PORNOGRAPHIC VIRUS ALERT FROM MICROSOFT is considered to be a technical support scam that claims false things such as system damage while visiting pornography-themed websites for receiving calls from users. If you ever get a message from this type of Microsoft virus and it does not disappear after installing Adblock, there might be adware lurking in your system and forcing the appearance of this scam.

Once PORNOGRAPHIC VIRUS ALERT FROM MICROSOFT scam appears on your computer screen, you will supposedly notice it. The fake message claims that the computer is locked and users need to call the given mobile phone number for help. DO NOT dial this number as hackers might try to swindle your money for useless security software or trick you to provide personal data.

PORNOGRAPHIC VIRUS ALERT FROM MICROSOFT scam is a fake report that claims about strange malware found on the Windows computer


VIRUS ALERT FROM MICROSOFT is another scam that is very similar to the previous one. This message also claims that the computer is locked due to a malicious infection and the only way to repair the damage is to contact the fake Microsoft helpline. This technical support number also is another fake one.

If you read the message, you will find that Microsoft virus scam claims many strange things such as that your computer is spreading malware throughout the Internet sphere, is running third-party programs, has been hacked and that the fake experts have been locking the system for safety. DO NOT believe in such things, these are LIES.

VIRUS ALERT FROM MICROSOFT is a scam that claims that users computers are infected with malware

Microsoft Warning Alert

Microsoft Warning Alert, also known as Microsoft Spyware Alert, is a technical support scam. The fake scam message provides a “critical alert” that urges users to contact the 0-800-046-5729 mobile phone number for instant help. Hackers claim that if the alert window is closed, computer connection and system work will be disabled.

Continuously, these cybercriminals keep on lying further. They claim that such damage and errors appeared due to pornographic spyware and riskware. However, the true risk while dealing with Microsoft virus that you should worry about is calling the fake helpline which can try to swindle personal information about you or your system for malware exploitation.

Microsoft Warning Alert virus
Microsoft Warning Alert virus - a scam that claims false things to trick users and convince them to call the given number

Microsoft Edge virus

Microsoft Edge virus is considered to be potentially unwanted content that aims to scare people for receiving benefits. The warning message appears as a Firewall alert and states that various data is at risk due to the secret infiltration of a computer virus. Calling the Microsoft helpline is claimed to be the only way to avoid possible information exposure.

If you ever receive a message from Microsoft virus, do not fall for believing in its claims. The note states that data such as credentials, banking information, Facebook and Skype logins, various passwords, and email addresses can be easily leaked if the problem is not fixed immediately.

Besides, the crooks threaten people via the fake Microsoft Edge virus message that their private photographies and video clips can be leaked. Nevertheless, potential criminals might have the ability to remotely access the webcam. Warning: do not fall for believing this as the only crooks are the people who have been providing this Microsoft virus message.

Microsoft Edge virus
Microsoft Edge virus - a tech support scam that provides a rogue audio file

“Microsoft Critical Alert” 

“Microsoft Critical Alert” appears to be another scam app that misuses the original name of Microsoft Corporation. Scamming and tricking users into dialing the given Microsoft Technical Support number 1-855-813-2335. The suspicious notification claims about a Windows System Alert, that the computer system has been infected and blocked.

Furthermore, the crooks announce that the only way to remove the error and unblock the computer system is by calling the tech support. However, we recommend NOT to do that as “Microsoft Critical Alert” virus does not provide any relevant or true information. You might be tricked by Microsoft virus into revealing personal information when talking with the developers on the mobile phone.

Microsoft Security Essentials Alert virus 

Microsoft Security Essentials Alert virus, also known as Hicurdismos, is also another technical support scam. This misleading notification appears while an infectious executable monitors malicious processes in the background. Once users are tricked to install and open a file named “setup.exe”, the virus provides a false BSoD error screen.

Note that legitimate BSoD errors usually disappear after rebooting the computer system. However, crooks behind Microsoft Security Essentials Alert scam urge to call the fake Microsoft Support helpline (1-800-418-4202) in order to receive some information on how to solve the problem. No contact should be made with these scammers even though they will try to create a legitimate look of the error.

Microsoft virus can monitor some different actions just to try to convince users that the problem truly does exist. These types of activities include disabling all processes in the Task Manager section, covering the entire screen with the BSoD error and denying access to any apps, and hiding the mouse cursor.

Your Windows (Microsoft) Computer has been blocked

Your Windows (Microsoft) Computer has been blocked is a misleading message that frequently targets Windows users. This notification also claims false things to trick users into calling the provided helpline number. First of all, the rogue message states that the system includes an error and that browsers might be hijacked.

Nevertheless, Your Windows (Microsoft) Computer has been blocked scam app becomes even scarier when the message alerts about the potential danger of private data and credentials. You can read that credentials and banking data, email logins, Facebook and other popular networks' logins, and private videos are at risk of exposure.

Microsoft Corporation has blocked your PC

Microsoft Support scam

Microsoft Corporation has blocked your PC belongs to the potentially unwanted program, scareware, and technical support scam categories. All of these links are because of the messages misleading content that aims to trick people and also because of its questionable appearance on web browsers.

The claims of Microsoft Corporation has blocked your PC scam are very similar to other scam messages. It starts tricking users that there is possible system damage which might relate to sensitive data exposure of components such as passwords, banking information, and pictures that are kept on the falsely infected machine.

As a fixing solution, the hackers provide a Microsoft Toll Free number that is claimed to help fix all issues. Calling these people is not an option. Note that such tricky Microsoft virus messages can be met anywhere, especially while visiting third-party sources. What you have to do is get rid of all potentially unwanted content from the system.

Microsoft Error: Unknown System Failure

Microsoft Error: Unknown System Failure is considered to be scareware and scamware that infiltrates systems via adware applications or other potentially unwanted programs. The main goal of this questionable message is to provoke users to call fake technical support and try to swindle money for rogue security tools or personal information.

Note that avoiding Microsoft Error: Unknown System Failure virus is the best thing you can do. If the suspicious notification appears only on particular unprotected websites, closing the browser window and never entering that web page again might be what you need for preventing the repeated appearance of the scam.

Microsoft has detected suspicious activity

Microsoft has detected suspicious activity is a technical support scam that operates by using the same principle just like other scam apps. Hackers pretend to be Microsoft support and announce about questionable activities happening on the user's computer system. These people also report false attempts to steal sensitive information and banking details.

No trust can be found in this scam application. Microsoft has detected suspicious activity is just a fake Microsoft virus that bothers you to swindle the personal data and the money. The removal process might include anti-malware tools or manual steps. However, just do not forget to get rid of the adware or another PUP that is provoking this scam to appear.

Microsoft tech support scam
Microsoft tech support scam - a rogue message that appears due to secret adware infiltration or a visit to an unprotected page

Validate copy of your Microsoft Windows

Validate copy of your Microsoft Windows – a technical support scam which claims that a certain copy of Windows did not pass genuine validation. In order to receive the original copy, users are urged to click on the “Update Now” button and dial the free support number for further help.

However, we recommend neither clicking on the button nor dialing the fake number as this might put you into some trouble. For example, you might be urged to pay for some fake licensed security software or provide sensitive details about yourself and the computer. Get rid of the adware that is supporting this Microsoft virus and the notification flow should end. is a scam message that claims about an error code 00x04C08. Furthermore, the notification reports that an unsupported or invalid partition type was detected and some malicious downloads were made that have related to some system problems.
As a solution, the scammers offer to call technical support via the given mobile phone number and provide the B2957E code for identification. The removal of virus should be your only priority for known. Eliminating the adware app that is causing this scam should solve the problem. pop-up ads appear when scamware starts attacking the computer system. These types of notifications can be met on third-party networks or be provoked by adware programs. Once the scam ends up on the victim's machine screen, it starts claiming about the false browser and computer danger.

Furthermore, +1-844-313-5529, +1-800-610-8993, +1-866-507-946, or +1-855-336-5598 mobile phone numbers are provided as a way to contact the technical support specialists. You should not fall for believing in these fake claims as none of these errors are true. You can figure that out by scanning the entire system with anti-malware.

More danger comes through infected Microsoft Office files

Internet security experts have released a report about infectious Microsoft Office documents that have been lurking out in the cyberspace and carrying malware inside. During September 2018, malware-laden Microsoft Office files were one of the main computer virus distribution techniques that helped the crooks to easily carry malicious software on users' computers.[4]

Malicious macros who have been inserted in these files carried a big variety of threats in the past. The most popular ones were GandCrab ransomware (one of the most widespread file-encrypting threats throughout the entire malware history), AZORult Trojan horse, Chanitor, and Geodo[5] malware forms.

Infectious but legitimate-looking Microsoft Office documents are spread by using one of the most popular malware distribution techniques – email spam. Such infected macros are attached to a rogue email message and are executed within one click. After that, the malicious payload can successfully be planted on the targeted machine.

Distribution sources and prevention tips (PUPs)

According to technology and virus specialists from,[6] potentially unwanted programs are capable of spreading via different types of third-party sources and software bundles. Talking about bundling, you can prevent such activity by using reputable sources for your downloads and opting for the Custom configuration mode.

Continuously, you should be aware of suspicious content such as advertisements and hyperlinks that you might meet while browsing throughout the web. If you ever enter a questionable website and you think that it might be infected with some strange malware, e.g Microsoft virus, close it immediately and never return.

Additionally, it is recommendable to carry out regular system check-ups especially after visits to malware-laden pages. If you choose a reputable tool, it will ensure that your computer system is secured 24/7. Also, the more protective features your antivirus includes, the more advanced your machine protection will be.

Removal instructions for different types of Microsoft malware

If the well-known Microsoft name has been misused by a cybercriminal and you have found some type of similar malware on your computer system, you should remove Microsoft virus from your Windows computer system without any hesitation. The most popular type of these viruses is scam apps which can be caused by adware or another potentially unwanted program.

If you have been receiving dubious messages and alerts that pretend to be from Microsoft, you can get rid of them by using automatical tools for adware elimination or the below-given step-by-step guide. These instructions will help you to perform the Microsoft virus removal from your entire Windows operating system.

Furthermore, here you will find how to remove additional components, which are related to Microsoft virus, from your web browsers. Beware of suspicious apps that, after being approved, can inject rogue extensions, plug-ins, and add-ons into such directories. This includes cleaning browsers such as Google Chrome, Mozilla Firefox, Internet Explorer, and Microsoft Edge.

You may remove virus damage with a help of Reimage Reimage Cleaner Intego. SpyHunter 5Combo Cleaner and Malwarebytes are recommended to detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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If you failed to remove virus damage using Reimage Intego, submit a question to our support team and provide as much details as possible.
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Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Intego, try running Combo Cleaner.

To remove Microsoft virus, follow these steps:

Erase Microsoft from Windows systems

Clean your Windows operating system from all suspicious or malicious content. Use these steps to achieve such goal:

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall Microsoft and related programs
    Here, look for Microsoft or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'

Delete Microsoft from Internet Explorer (IE)

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for Microsoft and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete Microsoft removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Uninstall Microsoft virus from Microsoft Edge

If Microsoft Edge got infected with some type of virus or potentially unwanted program, you can get rid of all unpleasant content with the help of this guide:

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, Microsoft should be removed from your Microsoft Edge browser.

Remove Microsoft from Mozilla Firefox (FF)

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select Microsoft and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete Microsoft removal. Click on 'Reset Firefox' button for a couple of times

Eliminate Microsoft from Google Chrome

Removing suspicious content from Google Chrome might not be that hard if you perform all of these steps exactly as shown in the instructing lines:

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select Microsoft and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete Microsoft removal. Click on 'Reset' button to complete your removal

Access your website securely from any location

When you work on the domain, site, blog, or different project that requires constant management, content creation, or coding, you may need to connect to the server and content management service more often. It is a hassle when your website is protected from suspicious connections and unauthorized IP addresses.

The best solution for creating a tighter network could be a dedicated/fixed IP address. If you make your IP address static and set to your device, you can connect to the CMS from any location and do not create any additional issues for server or network manager that need to monitor connections and activities. This is how you bypass some of the authentications factors and can remotely use your banking accounts without triggering suspicious with each login. 

VPN software providers like Private Internet Access can help you with such settings and offer the option to control the online reputation and manage projects easily from any part of the world. It is better to clock the access to your website from different IP addresses. So you can keep the project safe and secure when you have the dedicated IP address VPN and protected access to the content management system.

Backup files for the later use, in case of the malware attack

Computer users can suffer various losses due to cyber infections or their own faulty doings. Software issues created by malware or direct data loss due to encryption can lead to problems with your device or permanent damage. When you have proper up-to-date backups, you can easily recover after such an incident and get back to work.

It is crucial to create updates to your backups after any changes on the device, so you can get back to the point you were working on when malware changes anything or issues with the device causes data or performance corruption. Rely on such behavior and make file backup your daily or weekly habit.

When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware occurs out of nowhere. Use Data Recovery Pro for the system restoring purpose.

About the author

Lucia Danes
Lucia Danes - Virus researcher

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