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Four virus. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Malware

Four virus is a scam used to trick people into believing that their systems are heavily damaged

The image of various forms of Four virus

Four virus is a deceptive message which states that computer user's system is heavily damaged. This fake alert can appear on computers, smartphones, and tablets. Likewise, there might be new offsprings of Android virus and iPhone virus. Despite how genuine it might look, experts warn that the message is merely an attempt to lure you into downloading a potentially dangerous program on your system.

Usually, the person is redirected to a rogue site where the alert pops up, claiming that his or her system is heavily damaged by Four virus. Unfortunately, this message is fake and only indicates that you have an adware program installed on your system. Such potentially unwanted programs (PUPs)[1] are developed to deliver intrusive and often dangerous ads.

The fraction of Four virus warning delivered by one of its versions:

Your system is heavily damaged by (4) virus!

We have detected that your Windows 7 is 28.1% DAMAGED because of (4) harmful viruses from recent
adult sites,
If you do not remove the virus now, it will cause permanent damage to your system, corrupt your photos,
data, applications, etc.
Here’s what you NEED to do (step by step):
Step 1: Tap the button and install PC SmartCIeanup for free now!
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Note that you should never trust (4) virus alert since it might trick you into downloading more potentially unwanted programs or even malware. Victims report being offered to get a “trustworthy” security software to get rid of (4) virus. However, this is the way how criminals promote less than reliable programs or distribute malware.

Additionally, you might be redirected to “Your system is heavily damaged by Four virus” warning by a suspicious website. Therefore, we strongly suggest you to avoid visiting shady pages since this is one of the ways how you might be tricked by hackers into manually infecting your system. 

If you have encountered message of Four virus on iPhone or computer, immediately close the tab or window. Note that this is only a temporary solution to get rid of the alert, although it will protect you from installing various other potentially unwanted programs or dangerous cyber threats on your system.

Later, you must remove Four virus by uninstalling the adware[2] program which is the cause why you keep receiving such fake alerts. Unfortunately, ad-supported software often has numerous extra components that are hidden deep inside your system. So, it might be challenging to identify and eliminate them all.

Likewise, we suggest you get a professional antivirus for Four virus removal. Either employ Reimage or another reliable security software to uninstall the adware for good. Additionally, you will find guidelines showing how to reset your browser settings to finish the removal procedure.

You can let potentially unwanted programs inside your system during the installation of freeware

As we have already mentioned, “Your system is heavily damaged by (4) virus!” ads are delivered by an adware program. This software is one of the many that are classified as potentially unwanted programs and distributed via popular marketing technique called bundling. In other terms, it is stealthily installed on your computer during the installation procedure of free applications.

Note that such distribution method is legal, yet unfair. If you pick Quick or Recommended settings during the process the information about adware will be hidden, and you will end up installing it on your system. For this reason, we suggest you protect your system by ALWAYS choosing the Advanced or Custom mode.

Once you proceed with the installation, attentively follow each step and search for any suspicious offers to install unknown programs. If you find any, de-select the checkmarks granting your permission to install them and check your system for PUPs with a professional security software.

A quick way to uninstall Four virus

Experts from NoVirus.uk[3] note that you should not try to remove Four virus by following the instructions given in the fake pop-up message. We guarantee you that you will either be tricked to download expensive and ineffective antivirus or even lured to infiltrate malware.

Instead, you should ensure Four virus removal to a professional and expert-tested software. You can find our top picks listed down below. Automatic elimination requires merely to download the antivirus and let it scan your computer files thoroughly. Shortly after, you will no longer receive fake alerts during your browsing sessions.

Additionally, there is a way to get rid of Four virus by following the manual elimination guidelines given below. However, this method requires you to be an experienced computer user in order to complete the removal procedure correctly and avoid system damage. 

You can remove Four automatically with a help of one of these programs: Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus, Malwarebytes Anti Malware. We recommend these applications because they can easily delete potentially unwanted programs and viruses with all their files and registry entries that are related to them.

We might be affiliated with any product we recommend on the site. Full disclosure in our Agreement of Use. By Downloading any provided Anti-spyware software to remove Four virus you agree to our privacy policy and agreement of use.
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Compatible with Microsoft Windows Compatible with OS X
What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall Four virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
More information about this program can be found in Reimage review.
Press mentions on Reimage

Manual Four virus Removal Guide:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Eliminate Four from Windows systems

If an adware program is present on your windows system, you must remove it together with additional components.

  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 Four and related programs
    Here, look for Four 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'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove Four from Mac OS X system

In case you encounter Four virus message on Mac, search for and uninstall the adware.

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for Four or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Uninstall Four 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 Four 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 Four removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Erase Four virus from Microsoft Edge

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, Four should be removed from your Microsoft Edge browser.

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Get rid of Four 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 Four 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 Four removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete Four from Google Chrome

You can fix Chrome by deleting suspicious plug-ins and extensions which are disrupting your browser's activity.

  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 Four 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 Four removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Eliminate Four from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for Four or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete Four removal process. Select all options and click on 'Reset' button

About the author

Julie Splinters
Julie Splinters - Malware removal specialist

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References

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