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

Fix Remote Desktop Black Screen After Connection

You connect to a remote PC via Remote Desktop (RDP) and see only a black screen. The cursor moves...

Fix Task Scheduler Proxy Authentication Failed Error

When a scheduled task fails with a 'proxy authentication failed' error, it usually means the task...

Fix Windows Defender Rate Limit Error via Registry Edit

If Windows Defender shows a rate limit error—often with messages like "Threat service has stopped...

Fix 'ffmpeg command not found' in PHP exec()