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

Remove Large Files from Git History

If your Git repository is bloated because a large file was committed and later removed, the file ...

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

Fix VSCode Permission Denied on Save in Linux

You're editing a file in Visual Studio Code, press Ctrl+S, and see a red error: "Failed t...

How to Disable Windows Search Indexing Temporarily

If Windows Search is using too much CPU or disk I/O, or you're troubleshooting search issues,...

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

This error usually means Windows Update doesn't have pe...

How to Fix VS Code Source Control Not Detecting Changes

You open VS Code, edit a file, and expect to see it in the Source Control view. But the panel sta...