management-scripts/Restart-EndpointOnUptime.ps1

Function Restart-EndpointOnUptime ([int]$MaxUptimeHours) {

    # Check the last boot up time
    Try {
        $LastBootUpTime = Get-WmiObject -Class Win32_OperatingSystem1 -ErrorAction Stop | Select-Object -ExpandProperty LastBootUpTime
        $LastBootUpTime = [Management.ManagementDateTimeConverter]::ToDateTime($LastBootUpTime)
    }
    Catch [Exception] { Write-Error $_.Exception.Message ; Write-Output "Cannot restart this computer" ; Exit }
    

    # Calculate the difference in hours
    $CurrentTime = Get-Date
    $TimeDifference = $CurrentTime - $LastBootUpTime
    $DifferenceInHours = $TimeDifference.TotalHours

    # Check if the difference is greater than $MaxUptimeHours
    If ($DifferenceInHours -gt $MaxUptimeHours) {
        # Restart the computer
        Write-Output "Restarting computer because it has not been restarted in the last ${MaxUptimeHours} hours."
        Restart-Computer
    } Else {
        Write-Output "No need to restart. The last restart was within ${MaxUptimeHours} hours."
    }
}