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

Fix Windows Update Sync Issues Between PC and Server

You have a Windows PC that should get updates from your company's WSUS or domain server, but the ...

Fix Windows Security Connection Refused Due to Antivirus Blocking

You try to open Windows Security or run a scan, and get a 'connection refused' error. Often this ...

Remote Desktop Proxy Not Working After Update: Fixes

After a recent system update, you might find that your remote desktop client can no longer connec...

Fix Chrome Freezing or Not Responding When Downloading Files

You click a download link in Chrome, the browser freezes, and you see a "Not Responding" message....

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Windows Security Backup Restore Failed Error Code

When trying to restore a backup using Windows Security (Windows Defender), you might encounter an...