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

How to Fix BitLocker Recovery Key Expired Error

When you see a message that your BitLocker recovery key has expired, it usually means the key sto...

How to Fix Windows Defender Not Opening on Mac

If you're running Windows on a Mac via Boot Camp or a virtual machine and Windows Defender won't ...

Fix Windows Defender Version Mismatch with Configuration Tool

You might see a version mismatch warning when opening Windows Defender Security Center or running...

Fix Windows Security Service Not Starting Error

You click the Windows Security icon, but it doesn't open. Or you see an error saying the service ...

BitLocker Recovery Key Not Accepted: Fix Authentication Failed Error

Fix Windows Search 502 Bad Gateway After Update

After a recent Windows Update, you might see a “502 Bad Gateway” error when using Windows Search....