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

Fix Windows Defender 404 Not Found Error on Windows 10

You click to open Windows Defender Security Center and see a 404 page, or the Settings app shows ...

Fix Task Scheduler Access Denied Due to User Account Control

You set up a task in Windows Task Scheduler, but when it runs, you get an 'access denied' error. ...

Fix Nginx 502 Bad Gateway for WordPress

If you see a 502 Bad Gateway error when visiting your WordPress site running on Nginx, it usually...

How to Fix Chrome DNS Errors and Pages Not Loading

When Chrome suddenly stops loading any pages and shows a DNS error, it's usually a network config...

Fix 'Outlook File Locked by Another User Permission Denied' Error