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

Fix Windows Update 504 Gateway Timeout Error

Seeing a 504 Gateway Timeout error when running Windows Update can be frustrating. This usually m...

Fix Windows Activation Invalid Configuration After Hardware Change

After replacing a motherboard, CPU, or hard drive, you might see "Windows isn't activated" or "In...

How to Set Up Remote Desktop on Windows 11

Before You Start

Remote Desktop lets you connect to your Windows 11 PC from another devic...

Fix Chrome File Locked by User Account Control

You open Chrome and get a message that a file is locked by User Account Control (UAC). This usual...

Fix Windows 10 Product Key Not Working After Hardware Change

You replaced a major component—often the motherboard—and now Windows 10 says your product key isn...

Fix Windows Security Connection Refused via Group Policy

You open Windows Security and see 'Connection refused' or 'Something went wrong.' Often this happ...