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

Fix Windows Defender 504 Gateway Timeout & Permission Denied Errors

You open Windows Defender Security Center and see "504 Gateway Timeout" or "Permission Denied" er...

Fix OneDrive Sync Stuck on Processing Changes on Mac

OneDrive for Mac sometimes shows 'Processing Changes' for a long time, preventing file sync. This...

Fix Command Prompt DNS Lookup Failed Error 0x80072ee7

Fix Outlook Authentication Failed When Modern Auth Is Disabled

If you see "authentication failed" in Outlook and modern authentication is disabled, the issue us...

FFmpeg Audio Out of Sync: Troubleshooting Checklist

If your FFmpeg-encoded video has audio drifting or jumping out of sync, you're not alone. This ch...

Fix Microsoft Teams 'Module Not Found' Error

You open Microsoft Teams and see an error: Module not found. This typically mean...