
Fix 'Port Already Allocated' Error in Windows Defender on Windows 10
You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...
Software troubleshooting desk

You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...

You click the toggle to enable real-time protection in Windows Security, but it switches back off...

You click the profile download link in Chrome, but nothing happens—no download starts, no error m...

You might see a "Search rate limit exceeded" or similar error when using Windows Search frequentl...

When you search for files or settings in Windows and get a 'Permission Denied' or 'Access Denied'...

When you try to start a virtual machine in VirtualBox on Windows 10, you might see the error: