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

Fix Microsoft Store Error by Changing DNS Settings

If the Microsoft Store won't load, shows error 0x80131500, or fails to download apps, a DNS issue...

BitLocker Recovery Key Not Accepted in Windows 10: Fixes

You're locked out of your drive, you type in the 48-digit recovery key, and Windows 10 says it's ...

Fix PowerShell Blank Screen on Windows 11

If you open PowerShell on Windows 11 and see nothing but a blank window—no prompt, no text—the sh...

PowerShell High CPU Usage: Setup and Optimization Guide

You launch PowerShell and notice your CPU usage spikes to 80% or more, even when you're not runni...

Outlook Token Expired with Modern Authentication: Fixes

You're using Outlook and suddenly it asks for your password repeatedly, or shows an error like 'Y...

Fix MongoDB Authentication Failed Permission Denied Error