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

How to Fix Windows Update Authentication Failed Error

When you see 'Authentication failed' while running Windows Update, it usually means the update se...

Fix Windows Search 502 Bad Gateway After Update

After a recent Windows Update, you might see a “502 Bad Gateway” error when using Windows Search....

Fix Windows Activation High CPU Usage After Update

After a Windows update, some users notice that the System process or a service called sppsvc.exe ...

Command Prompt Connection Error Troubleshooting Guide

Microsoft Store Failed to Start: Step-by-Step Checklist

If Microsoft Store won't start, you're not alone. This checklist walks through the most common fi...

Windows Activation Failed Due to Blocked Key: Fixes That Work

You see “Windows activation failed due to blocked key” – it usually means the product key you’re ...