Severity scale:  
  (15/100)

We Have Detected A Serious Problem. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Adware

We Have Detected A Serious Problem is a fraudulent message which tries to make users perform a fake scan

We Have Detected A Serious Problem scam

We Have Detected A Serious Problem is a fake alert that is trying to scare users with non-existent computer threats. The cause for that is to make user install bogus software or steal personal information. The redirects to mac.advancesystemcare.co (which is causing the pop-up) are typically originated by adware.[1]

Name We Have Detected A Serious Problem
Type Adware
Danger level Medium
Symtoms Browser redirects to mac.advancesystemcare.co and other questionable websites;
Distribution Bundling, questionable websites
Removal methods  Consider downloading and installing Reimage. Also, you can try out our manual elimination method

The purpose of We Have Detected A Serious Problem virus is to generate various adverts in forms of pop-ups, deals, banners, offers, fake alerts, bogus software updates and similar. The content is promoted so that the adware creators could profit from unsuspected users. Ads are injected directly into Google Chrome, Safari or other browsers.

The attack can be directed to both, Mac and Windows users. Fake pop-up authors insert the correct OS name and version, making it more convincing. Additionally, crooks are using scare tactics to make users believe, that their machine is in great danger, and needs an urgent fix. However, it is not the case, and the only infection affecting victims’ computer is adware.

The fake alert displayed by We Have Detected A Serious Problem states:

mac.advancesystemcare.co says:
*** Warning***
Please consider cleaning your system.
Your Mac might not run normally until this is correctly fixed

Then, the webpage content proceeds with scary red alerts (naming few viruses), reminding of legitimate scan results of a genuine anti-virus program. Thus, users who never encountered such fake alerts before might get frightened and proceed with a bogus scan.

Crooks can use colors, logos, themes, etc. which are identical to Apple's or Windows'. This is done to make the alert more credible. However, you should never trust these messages. Merely check the address bar of your browser, and you will notice that the webpage is suspicious and does not come from Apple[2] or Windows.

If, however, you proceed with the alleged scan, you might be asked to enter some personal details or download software you do not need. The personal data might end up in cybercriminals’ hands, or your money from bank account might be stolen. That is another reason why We Have Detected A Serious Problem removal is essential.

Continual redirects to mac.advancesystemcare.co is not the only symptom which you machine might emit. Adware typically shows the following signs:

  • layers of ads conceal legitimate websites’ content;
  • installs additional components into your browser;
  • redirects to questionable domains;
  • alters your favorites/bookmarks;
  • slows down your machine considerably, etc.

You might struggle to detect adware or other PUPs causing these redirects. Therefore, it is a good idea to scan your system with Reimage – it can detect and remove We Have Detected A Serious Problem in just a few minutes.

Distribution methods adware creators use

Adware is typically distributed by employing bundling method – a vastly popular marketing campaign used by free software developers and PUP creators. Freeware developers generate revenue if the additional component gets installed on victims’ machine. The other party receives a benefit too, as it guarantees sneaky but secure PUP delivery.

Thus, to avoid unwanted programs on your machine, security experts[3] advise to be careful when installing free software. Never rush the installation process and read through EULA/Privacy Policy. Additionally, when prompted, opt for Advanced/Custom installation mode instead of Quick/Recommended one. This way, you will be able to untick all the pre-ticked checkmarks and avoid PUPs.

Eliminate adware and get rid of annoying We Have Detected A Serious Problem messages

You can remove We Have Detected A Serious Problem scam pop-ups by following our step-by-step guide beneath this post. However, make sure you execute each step attentively and in the correct order. Otherwise, the virus might return.

We Have Detected A Serious Problem removal can also be performed by a powerful security tool. We suggest picking one of the programs mentioned below. These applications are designed to find sneaky adware and other PUPs and eliminate them for good.

You can remove We Have Detected A Serious Problem 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 We Have Detected A Serious Problem you agree to our privacy policy and agreement of use.
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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 We Have Detected A Serious Problem. 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 We Have Detected A Serious Problem Removal Guide:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete We Have Detected A Serious Problem from Windows systems

  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 We Have Detected A Serious Problem and related programs
    Here, look for We Have Detected A Serious Problem 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 We Have Detected A Serious Problem from Mac OS X system

Please follow these steps if you want to get rid of We Have Detected A Serious Problem pop-ups:

  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 We Have Detected A Serious Problem 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

Erase We Have Detected A Serious Problem 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 We Have Detected A Serious Problem 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 We Have Detected A Serious Problem 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

Uninstall We Have Detected A Serious Problem 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, We Have Detected A Serious Problem should be removed from your Microsoft Edge browser.

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Get rid of We Have Detected A Serious Problem from Mozilla Firefox (FF)

Reset your Mozilla Firefox settings to default:

  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 We Have Detected A Serious Problem 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 We Have Detected A Serious Problem removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Eliminate We Have Detected A Serious Problem from Google Chrome

  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 We Have Detected A Serious Problem 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 We Have Detected A Serious Problem removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete We Have Detected A Serious Problem 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 We Have Detected A Serious Problem 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 We Have Detected A Serious Problem removal process. Select all options and click on 'Reset' button

About the author

Julie Splinters - Malware removal specialist

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