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

Chrome Black Screen Instead of White: Quick Fixes

You open Chrome and instead of the usual white background, you see a black screen. Tabs load, but...

Fix Windows Defender SSL Certificate Error

If Windows Defender shows an SSL certificate error, it usually means the antivirus can't verify t...

How to Fix OpenVPN Certificate Verification Failed

You see "certificate verification failed" when connecting to an OpenVPN server. This usually mean...

Fix Windows Security Error 0x80073b01: Step-by-Step Guide

You try to open the Windows Security app and get error code 0x80073b01. The app may crash or refu...

Fix Windows Search Indexing Stuck or Not Working

Windows Search stops indexing files, says "Indexing not running," or shows a status that never ch...

PowerShell Command Not Found but Works in CMD