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

Windows Defender 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

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

Fix OneDrive Sync Dependency Conflict Missing DLL Error

If you see an error like "dependency conflict" or "missing DLL" when trying to sync files in OneD...

Fix Windows Activation Module Not Found Error

When you see 'Windows activation module not found' while trying to activate Windows, it usually m...

Fix Windows Terminal 404 Error on Startup

When Windows Terminal shows a 404 error on startup, it usually means the app cannot find a requir...

Fix Microsoft Teams Installation Errors: Practical Steps

When you try to install Microsoft Teams, you might see error messages like “Something went wrong”...