
Check if a Port Is Already Allocated Using Command Prompt
When you start a service or application and get an error like "Address already in use" or "Port i...
Software troubleshooting desk

When you start a service or application and get an error like "Address already in use" or "Port i...

When you try to connect to a remote computer and see an "invalid configuration" error, it usually...

If you see a OneDrive sync error mentioning a proxy, it usually means OneDrive can't connect to M...

You click a PDF link in Chrome and the browser freezes or closes entirely. This is a known issue ...

When you see a 504 Gateway Timeout error in command prompt, it usually means a server upstream di...

When you try to connect to a remote PC and Windows 10 keeps asking for credentials or says they a...