You may use the following Windows PowerShell cmdlets to view the last time an Active Directory (AD) computer object reset it’s password for all of the computer objects in an AD domain or an individual computer object in an AD domain.

Get-ADComputer -Filter * -Properties PasswordLastSet | Select Name, PasswordLastSet | Sort-Object Name, PasswordLastSet | Format–List
Get-ADComputer -Filter ‘Name -EQ “<<<HOSTNAME>>>”‘ -Properties PasswordLastSet | Select Name, PasswordLastSet | Format-List