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

How to Recover from Detached HEAD in Git

You're working in a Git repository and suddenly see a message like 'You are in 'detac...

Fix VS Code Git Authentication Failed for GitLab

If you see "Git authentication failed" in VS Code when pushing or pulling from a GitLab r...

Fix Windows 11 Installation Assistant Stuck at 99% SFC Scan

You're upgrading to Windows 11 using the Installation Assistant, and it hangs at 99% while ru...

Fix Cloudflare Error 521 After a Server Update

If you see Cloudflare error 521 after updating your server, the origin web server is refusing the...

Fix Windows Update Error 0x80070002 Using DISM

If you see Windows Update error 0x80070002, it usually means the update system can't find a n...

Handling Python Memory Errors with Large File Chunking