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

Fix Windows Activation Blocked by Proxy Server

If Windows activation fails with an error like “We can’t activate Windows on this device because ...

Fix Outlook Login Loop with Modern Authentication

You enter your credentials, Outlook shows the loading screen, then prompts you to sign in again. ...

Fix Windows Defender Dependency Conflict with Group Policy

You might see an error like 'Windows Defender dependency conflict' or find that Defender won't st...

Fix Microsoft Store Authentication Failed Error

When you see an authentication failed error in the Microsoft Store, it usually means the store ca...

How to Fix Outlook Proxy Authentication Failed Error