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

Fix Windows Activation Blank Screen After Boot

You’ve just activated Windows, but instead of seeing the desktop, you’re stuck on a blank screen....

Fix Windows Security DNS Error Caused by Antivirus Conflict

You might see a Windows Security alert about a DNS error after installing or updating a third-par...

Fix Windows Update Error 0x80070002 (Pending Install Not Working)

If you see error 0x80070002 when trying to install Windows updates that are stuck on "pending ins...

How to Fix '404 Not Found' File Path Errors in CMD

MongoDB Compass: Authentication Failed vs Connection Refused

When using MongoDB Compass, you might see either "authentication failed" or "connection refused."...

OneDrive DNS Error Troubleshooting Guide

If you see a DNS error when trying to sync or access OneDrive, it usually means your computer can...