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

GitHub Actions Runner Not Connecting: Fixes That Work

You've set up a self-hosted GitHub Actions runner, but it never appears online or shows a "runner...

Reduce Command Prompt Memory Usage: Practical Steps

If you notice the Command Prompt (cmd.exe) consuming more memory than expected—sometimes hundreds...

Fix Windows Security Rate Limit Error: Can't Open App

You try to open Windows Security or a protected app, and instead you see an error message like "R...

Fix Microsoft Store High Memory Usage & Error 0x80073cf0

You open Task Manager and see Microsoft Store using several hundred MB of RAM. When you try to in...

How to Fix Windows Defender Update Error 0x80070643

If you see error 0x80070643 when updating Windows Defender, it usually means the update failed to...

Fix OneDrive 'Command Not Found' Error on Linux and macOS