Practical software fixes, setup guides, and tool workflows.

Fix Microsoft Store 404 Not Found After Update

After a Windows update, you might open Microsoft Store and see a 404 Not Found error when trying ...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

After installing or updating Microsoft Office, Outlook may open ...

Fix Windows Activation 502 Bad Gateway via Command Prompt

When you try to activate Windows and see a 502 Bad Gateway error, it usually means the activation...

Fix Windows Security Real-Time Protection Stuck

Windows Security’s real-time protection can get stuck in an “on” or “off” state, sometimes refusi...

FFmpeg Audio Delay Correction: Sync Audio and Video

If you've ever played a video where the audio lags behind or leads the picture, you're dealing wi...

How to Kill a Process Using a Port in Command Prompt

When you try to start a local server or application and see an error like "port already in use" o...