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

Fix Windows Defender Update Error 0x80240016

If you see error 0x80240016 when updating Windows Defender, it usually means Windows Update or De...

Chrome Extension Not Working After Restart: Fixes

You restart Chrome, and suddenly one or more extensions are grayed out, missing, or not functioni...

Fix Remote Desktop 502 Bad Gateway in Nginx

If you're seeing a 502 Bad Gateway error when trying to access Remote Desktop through an Nginx re...

Fix Windows Update Error 0x800f0922 When Using Backup Software

If you see error 0x800f0922 when trying to update Windows, and you use backup software, the probl...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

Fix 'Windows Defender Command Not Found' in Windows 10

You open Command Prompt or PowerShell, type something like MpCmdRun or Get-MpC...