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

Fix Windows Activation Failed Due to Product Key Mismatch

You see "Windows activation failed due to product key mismatch" after entering a key or during an...

Fix Windows Store Stuck on Pending Download

You open the Microsoft Store, tap Download, and it just sits there on “Pending.” The progress bar...

Fix OBS Black Screen but Audio Works: Step-by-Step Guide

If OBS Studio shows a black screen in your source preview or stream but audio is working fine, yo...

How to Fix OneDrive Access Denied Error 0x80070005

You try to open or sync a file in OneDrive and see "Access Denied" with error code 0x80070005. Th...

Fix Windows Activation Error 504 on VPN Connection

If you see error 504 when trying to activate Windows while connected to a VPN, it usually means t...

Fix Windows Update SSL Certificate Errors Not Working