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

Fix BitLocker 502 Bad Gateway During Recovery Key Retrieval

When you're locked out of a BitLocker-encrypted drive and the recovery key page returns a 502 Bad...

Outlook New Account Setup: Common Fixes for Stuck or Failed Configurations

When you try to add a new email account to Outlook, the setup may stall, fail, or return an error...

Windows Defender Not Opening? Here's How to Fix It

You click the Windows Defender icon, but nothing happens—or you get an error saying the app didn'...

Fix Windows Terminal 504 Timeout from Proxy Settings

You open Windows Terminal, try to run a command that reaches an external API or a web service, an...

Fix PowerShell DNS Resolution Failed Error

If you see DNS resolution failed when running a PowerShell command that tries to con...

Fix 'Permission Denied' When Creating a Folder in Command Prompt