
Fix Windows Defender 404 Not Found After Update
After installing a recent Windows update, some users find that Windows Defender is missing or sho...
Software troubleshooting desk

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

You open PuTTY, enter your server's IP and port, click Open, and get "Connection refused"...

You open Windows Security and get error 0x80070422, or see a message that the app can't start. Th...

If Windows Defender is using 30-50% CPU constantly, even when idle, it's usually due to aggressiv...

If you're developing a web application locally and need HTTPS, you can set up a self-signed SSL c...

When Microsoft Edge starts misbehaving—slow loading, frequent crashes, or unexpected pop-ups—rese...