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

Enable Windows Security Manually When It Fails to Start

If Windows Security (formerly Windows Defender) fails to start, you may see an error like "This a...

Fix WireGuard Handshake Not Completing on Android

If you see 'Handshake did not complete' in the WireGuard Android app, the tunnel can't establish ...

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" ...

How to Free Up a Port in Command Prompt (Windows)

When an application fails to start because a port is already in use, you need to free that port. ...

Fix DNS Probe Finished NXDOMAIN on Android Chrome

When you see DNS_PROBE_FINISHED_NXDOMAIN in Chrome on Android, it means the brow...

Fix BitLocker Permission Denied Access to Drive

You try to open a BitLocker-encrypted drive and get an 'access denied' or 'permission denied' err...