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

How to Fix Cloudflare Error 525: SSL Handshake Failed

Cloudflare error 525 appears when the SSL handshake between Cloudflare and your origin server fai...

How to Fix Microsoft Teams Audio Not Working on Ubuntu

If you're using Microsoft Teams on Ubuntu and the audio isn't working—no sound during calls, micr...

Setting Up Windows Activation for Ubuntu VM

If you're running a Windows virtual machine on Ubuntu, you'll need to activate it with a valid li...

How to Enable Windows Defender After It Failed to Start

If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...

Fatal: Repository Not Found After Git Pull – Fixes

You run git pull and get fatal: repository not found. The repository ex...

Fix Microsoft Store 404 Not Found Error on Reinstall