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

BitLocker Cache Cleanup Checklist for Sysadmins

If BitLocker-protected drives start acting up—slow unlocks, stale recovery keys, or disk space sh...

Remote Desktop Rate Limit Not Working: Fixes and Checks

You've set up a rate limit on your remote desktop service to prevent abuse, but connections still...

Remote Desktop Error 0x104: How to Fix Connection Issues

You try to connect to a remote PC via Remote Desktop (RDP) and get error code 0x104. The connecti...

MongoDB Authentication Failed: Administrator Checklist

Fix Windows Defender File Locked During Scan

You run a Windows Defender scan and it reports that a file is locked and can't be scanned. This i...

Fix Windows Security Module Not Found in Windows 11

You open Windows Security and see 'Windows Security module not found' or the app fails to launch....