Automatically diagnose and repair Windows file and folder problems ...
Some icons in My Computer, in Windows Explorer, on the desktop, or on the Quick Launch Bar change randomly. Troubleshoots and fixes common issues with file and folder operations in Windows.
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.
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.
Windows File Recovery - Microsoft Support
Use this app to try to recover lost files that have been deleted from your local storage device (including internal drives, external drives, and USB devices) and can’t be restored from the Recycle Bin. Recovery on cloud storage and network file shares is not supported.
Find the Recycle Bin in Windows - Microsoft Support
Ensure that Show desktop icons is checked. If not, select it. If your desktop shows icons, but the Recycle Bin is missing, verify that it's not disabled in your desktop settings. The Recycle Bin icon should be displayed on your desktop.
List of security program cleanup and uninstall tools
Provides links to the uninstall tools and directions for many security programs.
App & browser control in the Windows Security App - Microsoft Support
Smart App Control: Use this section to configure Smart App Control, which is a security feature designed to block apps that are potentially harmful, such as those that might slow down your PC, display unexpected ads, or offer unwanted software.
Download files from the web - Microsoft Support
Learn how to download files from the web, change your default download location, and find files you've downloaded on your PC using Internet Explorer.
Xbox Support
Xbox Support ... Xbox Support
Protect yourself from tech support scams - Microsoft Support
Using remote access, these experienced scammers can misrepresent normal system messages as signs of problems. Scammers might also initiate contact by displaying fake error messages on websites you visit, displaying support numbers and enticing you to call.