Software comparisons, alternatives, and tool decision notes.

How to Fix Windows Defender Not Turning On

Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...

OneDrive Sync Error 404 Not Found: Causes and Fixes

You open OneDrive and see a '404 Not Found' error during sync. This usually means OneDrive can't ...

Fix Outlook Module Not Found Permission Denied Error

When you see 'module not found' or 'permission denied' in Outlook, it usually means Outlook canno...

Fix PowerShell Token Expired Error 401

If you're seeing a 401 status code with a message like "token expired" in PowerShell, it usually ...

Fix 'ffmpeg: command not found' on Linux

You try to run ffmpeg in the terminal and get ffmpeg: command not found...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...