
Windows Defender Blank Screen: Troubleshooting Steps
You open Windows Security and see a blank white or gray screen. The interface doesn't load, and n...

You open Windows Security and see a blank white or gray screen. The interface doesn't load, and n...

You're trying to update Windows, but it hangs on a particular update and eventually shows error 0...

You try to open a BitLocker-encrypted drive and get an 'access denied' or 'permission denied' err...

If Windows Search doesn't start when you boot your PC, you'll notice the search box or taskbar se...

If you see an error message saying Windows Security has a version mismatch, or the Security Cente...

When configuring Windows Firewall or security policies, you might see a "port already allocated" ...