Checklists for software errors, setup, and tool workflows.

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Fix Explorer.exe Keeps Restarting in Windows 10

If your File Explorer (explorer.exe) keeps restarting on Windows 10, you'll see the taskbar a...

Fix Chrome Certificate Error: Invalid Authority with Proxy Settings

You open Chrome and see NET::ERR_CERT_AUTHORITY_INVALID on every site, even trus...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

How to Fix Git Push Rejected Non-Fast-Forward Upstream

When you run git push and see rejected! non-fast-forward, it means your...

Fix Windows Update Error 0x80070002 on Windows 11

If you see error 0x80070002 when running Windows Update on Windows 11, it usually means Windows c...