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

How to Fix Chrome SSL Certificate Error After Update

UFW Deny Port But Still Accessible: Fixes and Checks

You set a UFW deny rule for a specific port, but the port remains accessible from outside. This i...

How to Fix Windows Security File Locked Errors

You try to open a file and see a message like "The file is locked" or "Access denied." Sometimes ...

How to Set Up Task Scheduler with a Proxy Server

If you've scheduled a task in Windows Task Scheduler that needs to access the internet through a ...

Fix Task Scheduler High CPU Usage on Windows 11

If your Windows 11 system shows high CPU usage from Task Scheduler (the process svchost.exe...