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

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Windows Security Invalid Configuration Error

You open Windows Security and see an error: "Invalid configuration" or "Your IT administrator has...

How to Fix Task Scheduler Dependency Conflict Error

You set up a scheduled task in Windows, but it fails with a dependency conflict error. This usual...

Fix 'Access Denied' When Running CHKDSK in Command Prompt

When you run chkdsk from Command Prompt and see "Access Denied" or "You do not have ...

How to Fix Windows Defender Firewall Blocked App

You try to open an app, but it either won't start or can't connect to the internet. A common caus...

Fix Chrome 404 Error by Disabling Extensions

If you're seeing a 404 error in Chrome but the page loads fine in another browser, a misbehaving ...