PS C:\> (Get-CimInstance Win32_OperatingSystem).InstallDate

23 октября 2020 г. 00:49:21


PS C:\> Get-Hotfix -id KB4562830, KB4517245 | ft HotFixID, Description, InstalledOn

HotFixID  Description InstalledOn
--------  ----------- -----------
KB4562830 Update      2020-09-27 00:00:00


PS C:\> Get-ChildItem -Path HKLM:\System\Setup\Source* | ForEach-Object {Get-ItemProperty -Path Registry::$_} | Select-Object ProductName, ReleaseID, CurrentBuild, @{n="Install Date"; e={([DateTime]'1/1/1970').AddSeconds($_.InstallDate)}} | Sort-Object {[int]($_.CurrentBuild)}

ProductName            ReleaseID CurrentBuild Install Date
-----------            --------- ------------ ------------
Windows 7 Professional           7601         2015-05-16 13:21:02
Windows 10 Pro         1511      10586        2016-02-14 14:24:16
Windows 10 Pro         1607      14393        2016-08-08 15:30:31
Windows 10 Pro         1703      15063        2017-07-01 13:29:05
Windows 10 Pro         1709      16299        2017-12-10 10:13:24
Windows 10 Pro         1803      17134        2018-05-19 11:34:51
Windows 10 Pro         1809      17763        2018-12-24 16:56:36
Windows 10 Pro         1903      18362        2019-08-18 19:43:21
Windows 10 Pro         2004      19041        2020-08-23 20:20:17