Ad Users And Computers ~upd~ -

: $days = (Get-Date).AddDays(-90); Get-ADUser -Filter 'LastLogonTimeStamp -lt $days' -Properties LastLogonTimeStamp

Because ADUC's GUI is limited for large datasets, system administrators typically use the to generate long-form reports.

Power Shell to report Last Logon activity. - Experts Exchange

Originally introduced with Windows 2000, ADUC remains one of the most widely used graphical tools for day-to-day domain administration. It provides a centralized interface to view and organize your network’s "security principals" (the entities that can be authenticated by the system). Administrators use ADUC for several critical functions: