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

Fix Chrome Profile Authentication Failed & Sync Not Working

If you see “Authentication failed” in Chrome and sync has stopped working, it usually means a pro...

BitLocker Command Not Found: Recovery Checklist

When you run a BitLocker command in Command Prompt or PowerShell and get 'command not found', it ...

Fix Windows Security DNS Error Using Command Prompt

If you see a DNS error in Windows Security (like "DNS server not responding" or "DNS resolution f...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

Windows Store Download Stuck at 0 Bytes? Here's How to Fix It

You open the Microsoft Store, tap Install on an app, and the download bar just sits at 0 bytes. I...

Fix Windows Defender Real-Time Protection Permission Denied

You try to turn on real-time protection in Windows Security, but get a 'permission denied' messag...