Uninstall or remove apps and programs in Windows - Microsoft Support
There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.
Fix problems that block programs from being installed or removed
First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.
List of security program cleanup and uninstall tools
Provides links to the uninstall tools and directions for many security programs.
How to check if an app or program is installed in Windows
To find out if an app or program is installed in Windows, select Start > Settings > Apps.
Windows troubleshooters - Microsoft Support
Get Help has troubleshooters you can run for many common scenarios. These often help resolve issues without the need to contact support. If a troubleshooter is available for your issue, select Run to start that troubleshooter.
Determine whether your computer is running a 32-bit version or 64-bit ...
To determine which version of Windows you’re using, follow the steps in Method 1 or 2. If one method doesn’t work, try the other. Method 1: View the System window in Control Panel. Click Start, type system in the search box, and, under Control Panel, click System.
Applies To: Skype for Business Online operated by 21Vianet
Use the System File Checker tool to repair missing or corrupted system ...
Use the System File Checker tool to repair missing or corrupted system files. When critical Windows system files are missing or corrupted, some Windows features may stop working correctly or Windows may stop responding altogether.
View protected files with Microsoft Purview Information Protection ...
Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.
Download and install apps - Microsoft Support
Learn how to download and install apps you need from your Microsoft 365 business subscription.
How to start a scan for viruses or malware in Microsoft Defender
Here's how to do that on Windows, Mac, or Android.
Applies To: Microsoft Defender on Android, Microsoft Defender on Mac, Microsoft Defender on Windows