I'm trying to get some simple Powershell code working but I'm missing something obvious. I just want to see the amount of free space on each disk in my machine in gigabytes. If I run Get-WmiObject ...

You can display or list hard drives in CMD/Command Prompt or PowerShell, using wmic, diskpart, fsutil, psdrive command line, in Windows 11/10.

PowerShell may cause High CPU usage if you are using an obsolete version of Windows 11/10. However, we have covered every possible solution to fix this problem.