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

Bluetooth Not Working After Windows 11 Update? Try These Fixes

After a Windows 11 update, you might find Bluetooth missing, devices not pairing, or intermittent...

How to Fix Git Detached HEAD State and Undo Changes

You run git status and see something like "HEAD detached at abc123". This ha...

Fix 'Permission Denied' Error When Saving VS Code settings.json

You open VS Code's settings.json (either user or workspace), make a change, and try to save. ...

Fix Node Sass Build Failure After npm Cache Clean

Fix Error 0x80070080 When Windows Update Stuck

You see error 0x80070080 and Windows Update hangs at a certain percentage. This usually means a p...

Windows Security App Won't Open in Safe Mode: Fixes

If you’re in Safe Mode and the Windows Security app refuses to open—showing a blank window, crash...