Category Archives: PowerShell and CIM

Testing Windows activation from PowerShell involves a little dive into CIM (WMI). At its simplest a function like this function test-activation { $ta = Get-CimInstance -ClassName SoftwareLicensingProduct -Filter “PartialProductKey IS NOT NULL” | Where-Object -Property Name -Like “Windows*” if ($ta.LicenseStatus … Continue reading →

When you use Get-Volume one of the properties displayed is the friendly name PS> Get-Volume -DriveLetter C DriveLetter FriendlyName FileSystemType ———–     ————          ————– C                                                NTFS In this case its blank because I haven’t set a volume label. If you try … Continue reading →

Saw a question about logon sessions that had me looking at CIM class Win32_LogonSession. I really don’t like the example code they have – code shouldn’t posted that contains aliases especially the abominable use of ? for Where-Object (pet PowerShell … Continue reading →

I saw a question about the CIM_Component class and wondered what it was. So I tried it PS> Get-CimInstance -Namespace root\CIMV2 -ClassName CIM_Component | select -f 1 | fl * GroupComponent        : Win32_Directory (Name = “<directory path>”) PartComponent         : CIM_DataFile … Continue reading →

Way back in 2011, when I were just a young lad, I wrote about WMI or CIM references and associations – https://wordpress.com/read/blogs/16267735/posts/1673 ASSOCIATORS show the end point of the link between CIM classes and REFERENCES shows the linking class. I … Continue reading →

If you dig into the classes available on a Windows machine you’ll see a mixture of prefixes – namely CIM_ and Win32_ used for the classes. So which should you use CIM_ or Win32_ Lets start by seeing whats available: … Continue reading →