Software comparisons, alternatives, and tool decision notes.

How to Fix Windows Security 404 Not Found Error

If you see a '404 Not Found' error when opening Windows Security (formerly Windows Defender), the...

Fix VirtualBox Kernel Driver Not Installed on Windows 10

When you try to start a virtual machine in VirtualBox on Windows 10, you might see the error:

Fix 'Access Denied' Error When Using Net User in Command Prompt

When you run the net user command in Command Prompt and see an 'Access Denied' messa...

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...

How to Fix an Outlook File Locked Due to Sync Issue

You try to open Outlook and see a message that your data file (.pst or .ost) is locked. Often thi...

Fix 'Command Prompt Returns 404 for Localhost'

If you run curl http://localhost or wget http://localhost in Command Pr...