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

Fix PowerShell 502 Bad Gateway Certificate Errors

When you run a PowerShell script that makes an HTTPS request, you might see a 502 Bad Gateway err...

Fix Pip Permission Denied After Python Upgrade

How to Restart Remote Desktop Service from Command Line

If you need to restart the Remote Desktop service on a Windows machine—perhaps because users can'...

How to Fix 'Windows Defender Module Not Found' Error

If you see 'Windows Defender module not found' when trying to open Windows Security or run a scan...

How to Fix BitLocker Rate Limit Error

You're trying to unlock a BitLocker-encrypted drive or recover a key, and you see a rate limit er...

How to Repair Corrupted Windows Security Service Files

If Windows Security won't open, shows a blank screen, or throws errors like "Security service has...