Knowledge base for software setup, errors, and daily tool work.

How to Reinstall the Windows Security App (Microsoft Defender)

If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...

How to Manually Set Up Windows Update on a Mac

If you use a Mac with Boot Camp or a virtual machine like Parallels Desktop or VMware Fusion to r...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

How to Fix Chrome 404 Not Found Error (6 Steps)

You're browsing and suddenly see "404 Not Found" in Chrome. The page won't load. This error means...

BitLocker Connection Timeout: Fixes and Tools

If you see a "BitLocker connection timeout" error, it usually means the system cannot contact the...

Windows Defender Real-Time Protection Error 0x80070422 Fix

You try to turn on Windows Defender real-time protection, but you get error 0x80070422. This usua...