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# Code Snippet from aperturescience.su
# Parameters
[Parameter(Position=5, Mandatory=$false, HelpMessage="Maximum uptime allowed")]$maxuptime=45,
 
 
# Function to help format the strings
 
function WMIDateStringToDate($Bootup) { 
    [System.Management.ManagementDateTimeconverter]::ToDateTime($Bootup) 
}
 
# Main Body
$negmax = -$maxuptime
 
$system = Get-WmiObject -class Win32_OperatingSystem
 
$Bootup = $system.LastBootUpTime 
$LastBootUpTime = WMIDateStringToDate($Bootup)
 
$now = Get-Date 
$Uptime = $now - $LastBootUpTime 
$d = $Uptime.Days 
$h = $Uptime.Hours 
$m = $uptime.Minutes
 
Write-Verbose "System Up for: $($d) days, $($h) hours, $($m) minutes"
 
if ($LastBootUpTime -lt $now.adddays($negmax))
{
    Write-Verbose "System has been up longer than $maxuptime days"
}
else 
{
    Write-Verbose "System has not been up longer than $maxuptime days"
}
# Code Snippet from aperturescience.su