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

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...

Fix Windows Terminal High CPU Usage: Practical Steps

You open Task Manager and see Windows Terminal using 20–40% CPU even when idle. This usually poin...

How to Fix Windows Update Error 0x80070002 Stuck Downloading

If Windows Update gets stuck downloading with error 0x80070002, it usually means the update files...

Fix Windows Defender Login Loop in Windows 11

Some Windows 11 users report getting stuck in a login loop when opening Windows Defender. The app...

Fix Docker Volume Permission Denied on Linux