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

Fix pnpm ERR! Cannot Find Module – Practical Steps

How to Change Git Remote URL with git remote set-url origin

Sometimes you need to change the remote URL of your Git repository — for example, after switching...

How to Recover from a Detached HEAD in Git After a Rebase

You're in the middle of a rebase, you see a message like 'detached HEAD', and you'...

Fix Cloudflare Wildcard Subdomain and Root Domain Conflict

If you use a wildcard DNS record (e.g., *.example.com) on Cloudflare, you may run in...

Fix Windows Update Error 0x80070005 with a Clean Boot

If you see Windows Update error 0x80070005, it usually means a program or service is interfering ...

How to Reinstall Windows Security App (Microsoft Defender)

If the Windows Security app (Microsoft Defender) is missing, crashing, or not opening, reinstalli...