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

BitLocker Recovery Key 'Expired' on Windows 11: Fixes That Work

You enter your 48-digit BitLocker recovery key on Windows 11, but the system says it's expired or...

Fix Chrome Profile Port Already Allocated Error

How to Change Microsoft Store App Download Path in Windows

By default, Microsoft Store apps install to the system drive (usually C:). If that drive is low o...

How to Fix Task Scheduler Keeps Crashing on Windows 10

If Task Scheduler keeps crashing on Windows 10, you may see errors like “Task Scheduler service i...

How to Fix Windows Defender DNS Error

You open Windows Security and see a message like "DNS server is not responding" or "Your IT admin...

Checklist for Debugging 502 Bad Gateway in Command Prompt

You're working on a web app or API, and you get a 502 Bad Gateway error. The browser just says '5...