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

Install PowerShell 7 on Windows 10 Step by Step

You want to run the latest PowerShell 7 on Windows 10, but the built-in Windows PowerShell 5.1 is...

Windows Activation 502 Bad Gateway: Troubleshooting Checklist

If you're seeing a '502 Bad Gateway' error when trying to activate Windows, the problem is usuall...

How to Set Up BitLocker Encryption on Ubuntu Step by Step

If you need to access a BitLocker-encrypted drive on Ubuntu, you can't just plug it in and mount ...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix Windows Activation Failed After Hardware Change

If you see a "Windows activation failed" message after upgrading your PC hardware, you're not alo...

Fix Outlook OAuth 2.0 Token Expired Error

If you see an error like “Token expired” or “Authentication failed” in Outlook ...