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Error #31(0x1F). How to remove? (Uninstall guide)

removal by Olivia Morelli - - | Type: Adware

Error #31(0x1F) is a scam that encourages people to call a fake Windows Support number

Error #31(0x1F) pop-up
Error #31(0x1F) virus is a scam that tricks people into thinking their device is at risk.
Error #31(0x1F) is a malicious program that displays a deceptive pop-up window with the message about possible system failure or danger to your sensitive information. However, this is a fake alert, and there is no danger to your system or credentials besides the adware-type virus displaying intrusive content without your approval. Typically, the virus is causing a pop-up window filled with a Windows security alert and informing the victim about the presence of malicious programs. Additionally, it encourages people to contact the alleged support via +1-888-905-1666 or other numbers immediately. Unfortunately, calling the number may lead to cybercriminals or scammers who are seeking to get your personal information or money for their “technical support.” Beware that by entering your banking details, you can reveal them to scammers as they can use a fake screen posing a legitimate bank page. You should ignore such alerts and keep in mind that Windows technical support has never asked for money.

Name Error #31(0x1F)
Type Adware/Scam
Category Potentially unwanted program
Symptoms Delivers a fake alert message and commercial content, encourages to call suspicious number
Distribution Software bundles, deceptive websites or advertisements
Main danger Tricks people into revealing their information, collects keystrokes with the screen overlay
Elimination Use Reimage for a general system cleaning and remove Error #31(0x1F)

Error #31(0x1F) pop-up redirects to a deceptive website which displays a message identified as Unknown System Failure but in reality there is no malicious activity that affects the general system of your device. The adware which infiltrated your system delivers all this content. This potentially unwanted program[1] also causes:

  • intrusive commercial content;
  • advertisements in the form of banners, pop-up windows;
  • redirects to deceptive websites;
  • in-text links to malicious sites;
  • installation of additional browser content.

Error #31(0x1F) can also cause slowness of the browser or device in general and this way users get tricked that the system is infected. Nevertheless, your details might be at risk, especially if the message keeps popping up or you contact the suggested number.[2] 

Unfortunately, Error #31(0x1F) virus message is not a program you can find nor delete because the main symptom is the delivery of the message that reads:


Your Windows Customer ID: WINDOWS10A182404
Call Official Windows Support Tollfree: +1-888-905-1666
Malicious spyware / riskware detected.
Error #31(0x1F) Unknown System Failure!

Please call WINDOWS SUPPORT NO: +1-888-905-1666 (TOLL FREE) immediately
Suspicious Connection Was Trying To Access Your IP Address, Logins & Tracking your Banking.
Your TCP Connection Was Blocked By Your Firewall. Your Connection Will Be Suspended Soon.
Hard Drive Have Trojan Virus! Please Don't Try To Fix Manually, It Will Crash Your All Data on the Device.
Suspicious Connection may trying to access following information:
> Banking Information.
> Email / Facebook Logins.
> Credit cards details.
> Photos stored on this device.

Consequently, We are performing additional security check to verify our existing customers.
Please Call OFFICIAL WINDOWS TOLL FREE NUMBER +1-888-905-1666 to reactivate your Connection.
Please mention the Your YOUR WINDOWS CUSTOMER ID: WINDOWS10A182404
when you are calling.

Researchers[3] note that similar errors like Error #31(0x1F) can indicate various problems with the device, but there is no need to call the provided numbers. Often these tech support scammers[4] talk with a foreign accent and this fact should be a first indicator that the support is not legitimate.

You should employ a reputable anti-malware program and scan the system instead. This way you can remove Error #31(0x1F) from the system and keep on using the machine safely. You should use Reimage or any other tool and follow the suggested steps. The program indicates possible intruders and terminates malicious programs.

Automatic Error #31(0x1F) removal is the best option because the program causing these fake system alerts comes without your consent or knowledge and often via software bundles or from deceptive ads. A full system scan eliminates all similar programs and browser extensions or plugins. 

Unwanted applications come from visiting suspicious websites

In most cases, potentially unwanted applications like adware, browser hijackers or fake system tools come via software bundles because developers pack their products alongside various freeware and spread these bundles around the internet. When you get freeware from questionable sources, you risk getting additional programs like fake system alerts causing adware.

You can avoid these infiltrations if you choose Advanced or Custom options during freeware installation. By doing so, you get an opportunity to decide what programs get installed on the device. If you skip through these steps and select Default or Quick options, you automatically agree to all additional programs. Also, keep your security software up-to-date, so suspicious websites can be blocked before you enter them.

Get rid of Error #31(0x1F) and related alerts or commercial content

Remove Error #31(0x1F) and forget about those deceptive alerts and commercial content constantly delivered to your screen. You can do so by scanning the system entirely using reputable antivirus tools. If you have a program that you can trust make sure to follow the suggested steps.

If you need a software suggestion for Error #31(0x1F) removal, we have listed a few programs that we as security researchers can trust and recommend. This method of virus termination takes less than 15 minutes and gives you an advantage of eliminating all possible threats.

You should also remember that Error #31(0x1F) virus may install additional content on your browser, so you should check your Chrome, Firefox or Excel browser for suspicious extensions or toolbars and change settings to default on every one of them. 

You can remove virus damage automatically with a help of one of these programs: Reimage, SpyHunterCombo Cleaner, Malwarebytes Malwarebytes. We recommend these applications because they detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. 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.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with SpyHunter.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove Error #31(0x1F), follow these steps:

WindowsInternet ExplorerMicrosoft EdgeFirefoxGoogle Chrome

Delete Error #31(0x1F) from Windows systems

Windows system can be affected by Error #31(0x1F), make sure to clean the system thoroughly:

  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 Error #31(0x1F) and related programs
    Here, look for Error #31(0x1F) 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'
WindowsInternet ExplorerMicrosoft EdgeFirefoxGoogle Chrome

Get rid of Error #31(0x1F) 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 Error #31(0x1F) 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 Error #31(0x1F) removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again
WindowsInternet ExplorerMicrosoft EdgeFirefoxGoogle Chrome

Remove Error #31(0x1F) 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, Error #31(0x1F) should be removed from your Microsoft Edge browser.

WindowsInternet ExplorerMicrosoft EdgeFirefoxGoogle Chrome

Uninstall Error #31(0x1F) 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 Error #31(0x1F) 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 Error #31(0x1F) removal. Click on 'Reset Firefox' button for a couple of times
WindowsInternet ExplorerMicrosoft EdgeFirefoxGoogle Chrome

Erase Error #31(0x1F) from Google Chrome

Check your browser for any Error #31(0x1F) related content and delete those extensions or add-ons:

  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 Error #31(0x1F) 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 Error #31(0x1F) removal. Click on 'Reset' button to complete your removal

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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