Knowledge base for software setup, errors, and daily tool work.

OneDrive Sync Auto-Start Troubleshooting Checklist

If OneDrive doesn't start or sync automatically when you log in to Windows, it's usually due to a...

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...

How to Restart the Task Scheduler Service in Windows

If scheduled tasks aren't running or you see errors like "Task Scheduler service is not available...

How to Fix DNS Probe Finished NXDOMAIN on Chrome (IPv4/IPv6)

You're browsing in Chrome and suddenly see "DNS probe finished NXDOMAIN" — meaning the domain nam...

Fix Office 365 Token Expired Error in CMD