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

Fix Windows Defender DNS Error Permission Denied

You run a scan or update in Windows Defender and see an error like "DNS error permission denied" ...

Fix Outlook 'Connection Refused' Error During Exchange Server Setup

When configuring Outlook to connect to an Exchange Server, a 'connection refused' error typically...

How to Fix Windows Activation Proxy Error

If you see "We can't activate Windows on this device because of a proxy error" or similar, your s...

Fix OneDrive Token Expired Error (0x8004de40)

You open OneDrive and see an error like “Your token has expired” or code 0x8004de40. This usually...

Windows Terminal Version Mismatch: A Practical Checklist

You open Windows Terminal and get a version mismatch error—or something just doesn't work the sam...

Fix PowerShell Reset Settings Not Syncing