Fix problems that block programs from being installed or removed
Block you from uninstalling a program through Add or Remove Programs (or Programs and Features) in Control Panel. If you're trying to remove malware, you can use Windows Security (or another antivirus tool), or you can use the Windows Malicious Software Removal tool.
Use the System File Checker tool to repair missing or corrupted system ...
Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista. true.
Remove malware from your Windows PC - Microsoft Support
Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.
Applies To: OneDrive (home or personal), OneDrive for Windows
Recover lost or deleted files - Microsoft Support
Learn how to recover files that have been lost, deleted, or accidentally changed.
Add an exclusion to Windows Security - Microsoft Support
If you trust a file, file type, folder, or a process that Windows Security has detected as malicious, you can stop Windows Security from alerting you or blocking the program by adding the file to the exclusions list. Caution: Only do this for files that you're confident are safe.
Protect your PC from potentially unwanted applications
Potentially unwanted app blocking was first introduced in the Windows 10 May 2020 update and is turned off by default for enterprise and consumer customers. Note: Beginning in September of 2021 we will only be blocking cryptomining software as PUA for enterprise customers. How do I configure it?
Recovery options in Windows - Microsoft Support
If you're having problems with your PC, the following table can help you decide which recovery option to use. Select one of the recovery options below and follow the steps to try to get things working again. Learn about the recovery options in Windows.
Block pop-ups in Microsoft Edge - Microsoft Support
In Edge, go to Settings and more at the top of your browser. Select Settings > Cookies and site permissions. Under All permissions, select Pop-ups and redirects. Turn on the Block (recommended) toggle. When this feature is turned on and a pop-up has been blocked, Edge will display the following image in your web browser's address bar.
Applies To: Microsoft account dashboard
"Access Denied" or other errors when you access or work with files and ...
When you try to access or work with files and folders in Windows, you experience one or more of the following issues: Issue 1: You receive an "Access Denied" error message or a similar message. Issue 2: You cannot access, change, save, or delete files and folders. Issue 3: You cannot open a file or folder after you install a new version of Windows.
How to use the Regsvr32 tool and troubleshoot Regsvr32 error messages
Regsvr32 is a command-line utility to register and unregister OLE controls, such as DLLs and ActiveX controls in the Windows Registry. Regsvr32.exe is installed in the %systemroot%\System32 folder in Windows XP and later versions of Windows. The 64-bit version is %systemroot%\System32\regsvr32.exe.