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

Fix Windows Defender 502 Bad Gateway Permission Denied

If you're seeing a '502 Bad Gateway – Permission Denied' error when using Windows Defender (Micro...

Fix Outlook Stuck in Offline Mode on Windows: Practical Steps

You open Outlook and see "Working Offline" in the status bar, even though your internet is fine. ...

Fix Windows Search Connection Refused Network Error

If you see 'connection refused' when searching network locations in Windows, it usually means the...

Fix OneDrive Sync Error 0x80070020: File Locked

OneDrive sync error 0x80070020 typically appears when a file is locked by another application (e....

Fix PowerShell Service Unavailable After Update

After a Windows update, you might see errors like "Service Unavailable" when trying to launch Pow...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN