
Windows Defender Not Opening? Here's How to Fix It
You click the Windows Defender icon, but nothing happens—or you get an error saying the app didn'...
Software troubleshooting desk

You click the Windows Defender icon, but nothing happens—or you get an error saying the app didn'...

You open Windows Security and see an error: "Invalid configuration" or "Your IT administrator has...

You enter a valid Windows product key, but Windows says it's not accepted. This is frustrating, e...

You're trying to browse but Chrome shows 'ERR_PROXY_CONNECTION_FAILED' or 'Unable to connect to t...

If Microsoft Teams keeps crashing on you—freezing, closing unexpectedly, or failing to start—you'...

If Windows Search can’t connect to the internet, you’ll likely see errors like “Can’t connect to ...