
How to Reinstall the Windows Security Module
If Windows Security won't open, shows errors, or you see "This app has been turned off" messages,...
Software troubleshooting desk

If Windows Security won't open, shows errors, or you see "This app has been turned off" messages,...

You've set up Windows Terminal with custom command line arguments, but they're not being applied....

When you upgrade or replace a Windows device, you may need to migrate security settings such as f...

If you notice Windows Security (formerly Windows Defender) using excessive memory—sometimes hundr...

You change a setting in Chrome—like the default search engine, startup page, or password manager—...

After resetting your network settings (e.g., running netsh int ip reset or resetting...