# encoding: ascii
# api: powershell
# title: Get-SystemInstallDate
# description: From greg’s repository on github.
# version: 0.1
# type: function
# author: greg zakharov
# license: CC0
# function: Get-SystemInstallDate
# x-poshcode-id: 4863
# x-archived: 2017-05-22T04:19:17
# x-published: 2014-01-31T06:06:00
#
#
#requires -version 2.0
function Get-SystemInstallDate {
<#
.NOTES
Author: greg zakharov
#>
try {
([wmi]'').ConvertToDateTime((gwmi Win32_OperatingSystem).InstallDate)
}
catch [Management.Automation.RuntimeException] {
if ($_.Exception) {
[TimeZone]::CurrentTimeZone.ToLocalTime([DateTime]'1.1.1970').AddSeconds(
(gp 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion').InstallDate
)
}
}
}