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

FFmpeg Video and Audio Out of Sync: Practical Fixes

You encoded a video with FFmpeg and now the audio drifts or is completely out of sync. This is a ...

Fix Windows Search Authentication Failed Error 0x80070005

When Windows Search fails with error code 0x80070005 and an "authentication failed" message, it u...

Clear Windows Activation Cache Without Admin Rights

If you're stuck with a Windows activation error but can't get admin rights, you still have some o...

Fix Windows Security Connection Refused Due to Antivirus Blocking

You try to open Windows Security or run a scan, and get a 'connection refused' error. Often this ...

Fix 'Windows Security Authentication Failed' for Domain Credentials

Fix Windows Activation Dependency Conflict Error

You may see a Windows activation error that mentions a "dependency conflict" or "dependency servi...