If you're going to work IT for any company that runs Windows — and even a few that don't — you're going to need to get familiar with PowerShell. The benefits are obvious: Once you've got a handle on ...

I ran one command and found startup apps Windows “forgot” to mention.

This one PowerShell command reveals detailed system info Windows hides, from BIOS data to install dates, in seconds.

When you want to start PowerShell, you may sometimes get a Windows cannot find powershell.exe error message, in that case, make sure you type “PowerShell ...