Hello folks!
I found something extremely useful while I was doing a research for another topic. Back in the days I tried couple of times to review all AD users, including deleted. I had a lot of headaches regarding this task. Now I want to share with you couple of PowerShell commands.
Get-ADUser -Filter {Enabled -eq $false} | FT samAccountName
With this command you will find all disabled users inside your AD.
Get-ADUser -Filter {Enabled -eq $false} | FT samAccountName, GivenName, Surname
This is the same as the command above but with extra parameters (GivenName, Surname). So this will output the samAccountName, first name, and last name of the disabled users.
Get-ADUser -Filter {Enabled -eq $false}
If you want no formatting whatsoever and have AD spit a bunch of information back at you, try running just the Get-ADUser part with the filter applied.
Search-ADAccount -AccountDisabled
This can be used to find out the disabled users AND computers.