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

Fix Chrome Profile Dependency Conflict by Deleting Profile

If Chrome shows a "profile dependency conflict" error or refuses to open your profile, the quicke...

Certbot Nginx Plugin Install Failures: Common Fixes

When you run certbot --nginx and get an error like "The nginx plugin is not working"...

Fix Chrome DNS Error Using chrome://net-internals

If you see a DNS error in Chrome—like "ERR_NAME_NOT_RESOLVED" or "DNS_PROBE_FINISHED_NXDOMAIN"—th...

Fix Microsoft Teams Authentication Failed Due to Proxy

If you see 'Authentication failed' when launching Microsoft Teams and you're behind a corporate p...

Fix Windows Activation 502 Bad Gateway Due to Proxy Settings

If you see a "502 Bad Gateway" error when trying to activate Windows, the problem is often a misc...

Fix Robocopy Error 5: Access Denied in Backup Command