Home / office-tools

office-tools checklist library

How to Fix 'File Locked by System' in Windows Defender

If you see an error like "File locked by system" when running a Windows Defender scan or trying t...

2026-05-22Windows Fixes

After a Windows Update, some users encounter a blank screen—no login prompt, no cursor, just a bl...

2026-05-27macOS Help

You try to connect to MySQL on localhost and get ERROR 2003 (HY000): Can't connect to MySQL...

2026-05-28Browser Issues

You type a PowerShell command and get 'not recognized as the name of a cmdlet, function, script f...

2026-06-12Office Tools

You may see a Windows Defender version mismatch error if the security intelligence definitions on...

2026-05-27Developer Tools

You set a PowerShell script to run automatically at startup, but it fails silently. The script wo...

2026-05-18Cloud Software

You see an error that says something like "Windows Update module not found" or "Configuration fai...

2026-06-12Security Tools

When you run npm install -g some-package and see an EACCES: permission denied<...

2026-06-11Backup Recovery

You open VS Code, try to run a Python file, and get a message like “No Python interpreter selecte...

2026-05-30Network Tools

If you installed PowerShell on Ubuntu via the official Microsoft repository, updating is straight...

2026-05-27Database Tools

When you try to open Windows Security or access its features (like virus & threat protection), yo...

2026-06-09AI Tools

If you're seeing FATAL: password authentication failed for user when connecting to P...

2026-05-19Productivity Apps

You try to delete, rename, or edit a file and get an error that it's open in Windows Terminal. Th...

2026-06-10CLI Errors

You reinstall Windows, enter your product key, and get an error: “This product key does not match...

2026-06-03Docker Kubernetes

[1]2345678910