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

Windows Defender Troubleshooting Checklist

Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...

Fix BitLocker Permission Denied Error on Encrypted Drives

You unlock a BitLocker-encrypted drive, but when you try to open it, Windows says 'permission den...

Fix Windows Defender Module Not Found Error

You open Windows Security and see an error: "Module not found" or "Windows Defender module not fo...

How to Fix OneDrive 404 Not Found Error Code

If you see a '404 Not Found' error when accessing OneDrive files or folders, it usually means the...

Fix Windows Defender Connection Refused on Windows 10

When you see "connection refused" while using Windows Defender on Windows 10, it usually means th...

Fix PowerShell Proxy Authentication Failed Errors