
Fix 'Port Already in Use' Error with Windows Defender Firewall
You try to start a local service or application, and it fails with an error like 'port already in...
Software troubleshooting desk

You try to start a local service or application, and it fails with an error like 'port already in...

You see an error saying the Windows activation file is locked, or activation fails with a file ac...

If Chrome keeps asking you to log into your Google account every time Windows 11 starts, you're s...

If Chrome suddenly can't load pages or you see "ERR_PROXY_CONNECTION_FAILED", the browser's proxy...

If you're stuck in an Outlook login loop—where it repeatedly asks for your password or keeps spin...

When Outlook crashes, hangs, or shows sync errors, support teams often ask for log files. Here's ...