
How to Enable Windows Defender on Windows 11
If you've noticed Windows Security is off or grayed out, you may need to re-enable Windows Defend...
Software troubleshooting desk

If you've noticed Windows Security is off or grayed out, you may need to re-enable Windows Defend...

After a Windows update, you might see "Access Denied" errors when trying to open Windows Security...

You're trying to unlock a BitLocker-encrypted drive, but you see an error about an SSL certificat...

You click the Windows Security icon in the taskbar or open it from Settings, but nothing happens—...

If you see a BitLocker proxy error while setting up encryption, the setup process usually stops w...

OneDrive error 0x8004de40 usually appears when signing in or syncing. It points to a problem with...