Use the System File Checker tool to repair missing or corrupted system ...
When critical Windows system files are missing or corrupted, your operating system may begin to malfunction. Common symptoms include Windows features not working properly, system errors, or Windows becoming unresponsive or freezing.
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.
List of security program cleanup and uninstall tools
Provides links to the uninstall tools and directions for many security programs.
Repair apps and programs in Windows - Microsoft Support
This article explains how to repair apps and programs in Windows 11 and use Settings to fix common app issues without reinstalling. You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs. Repair options from the Settings page.
Automatically diagnose and repair Windows file and folder problems ...
Troubleshoots and fixes common issues with file and folder operations in Windows.
Windows troubleshooters - Microsoft Support
Get Help has troubleshooters, or diagnostic tests, that can check your system configuration for anything that might be causing issues using your devices. View troubleshooter results. After you run any troubleshooter, Get Help provides details on any findings and suggestions for possible remedies.
Fix problems that block programs from being installed or removed
After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11. Learn more. Note: Use these steps for Windows programs.
Virus and Threat Protection in the Windows Security App
Real-time protection is a feature in the Windows Security app that continuously monitors your device for potential threats such as viruses, malware, and spyware. This feature ensures that your device is actively protected by scanning files and programs as they are accessed or executed.
How to troubleshoot Windows Installer errors - Microsoft Support
You can use the Wilogutl.exe tool to analyze log files from a Windows Installer installation. This tool may suggest solutions to errors that are found in a log file.
System Configuration Tools in Windows - Microsoft Support
Windows provides a variety of configuration tools tailored to meet the needs of different users. These built-in tools facilitate your device's customization and monitoring, allowing you to change Windows' configuration to suit your preferences and requirements with precision.