Practical fixes for tool errors, setup blocks, and workflow issues.

BitLocker Invalid Configuration Error: Common Fixes

You see a BitLocker invalid configuration error code during startup or when trying to manage encr...

Fix Windows Security Antivirus Not Turning On

You open Windows Security and see that the antivirus is off, with no obvious way to turn it on. T...

Fix Microsoft Store DNS Error on Wired Connection

If you see a DNS error in Microsoft Store while on a wired connection, the issue is usually with ...

Fix Windows Defender 404 Not Found After Update

After installing a recent Windows update, some users find that Windows Defender is missing or sho...

How to Fix Windows Defender 502 Bad Gateway Error

If you see a '502 bad gateway' error in Windows Defender, it usually means the security service c...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...