
Windows Defender Access Denied Troubleshooting Checklist
You try to open Windows Defender or run a scan and get an "Access Denied" message. This usually m...
Software troubleshooting desk

You try to open Windows Defender or run a scan and get an "Access Denied" message. This usually m...

You see the error "Chrome profile authentication failed" with code 0x800704cf when trying to sign...

You try to open a website in Firefox and see a full-page error: "Secure Connection Failed" with a...

When you see a 502 Bad Gateway error while configuring BitLocker, it usually mea...

When you try to connect to a remote computer using Remote Desktop (RDP), you might see an error l...

You need to install the command prompt tool—perhaps for development or system tasks—but the insta...