One of my favorite techniques when using WMI in PowerShell is to pipe an object to Select-Object and select all properties. Try this:<\/p>\n
It works, but it also gets all of the system properties like __PATH which I rarely care about. I also get other properties like Site and Options which I typically don't need. So here are some techniques you can use to view all WMI properties that probably matter most. Let's begin with a typical command:<\/p>\n This object has a property called Properties which is a collection of WMI PropertyData objects. I could try something like:<\/p>\n Name Value Sure, I can see the properties and values but I don't really have a good object to work with and this won't help with multiple instances, at least not without a little extra work.<\/p>\n And maybe that's all you need. If so, terrific. But I'm looking for an elegant solution. How about expanding the property names and saving them as an array of strings.<\/p>\n Then I can use them with Select-Object<\/p>\n PS C:\\> $os | Select -Property $prop<\/p>\n BootDevice : \\Device\\HarddiskVolume1 That has promise. I could even turn this into a one-line command, assuming I've already defined $os.<\/p>\n If I didn't want to take the extra step, here's a complex alternative:<\/p>\n But this leads to yet another option, using the [WMIClass] type accelerator. When used, PowerShell creates an empty object of the specified WMI class which includes a property list.<\/p>\n Name This can be further simplified:<\/p>\n In fact, I can use this in an earlier expression to get the same non-System class results.<\/p>\n
\nget-wmiobject win32_bios | select *
\n<\/code><\/p>\n
\n$os=get-wmiobject Win32_OperatingSystem
\n<\/code><\/p>\n
\nPS C:\\> $os.properties | select name,value<\/p>\n
\n---- -----
\nBootDevice \\Device\\HarddiskVolume1
\nBuildNumber 7601
\nBuildType Multiprocessor Free
\nCaption Microsoft Windows 7 Ultimate
\nCodeSet 1252
\nCountryCode 1
\n...
\n<\/code><\/p>\n
\n$d=Get-WmiObject win32_logicaldisk -filter \"drivetype=3\"
\n$d | foreach {$_.properties | select name,value }
\n<\/code><\/p>\n
\n[string[]]$prop=$os.properties | Select -expand name
\n$os | Select -Property $prop
\n<\/code><\/p>\n
\nPS C:\\> $os | Select -Property $prop<\/p>\n
\nBuildNumber : 7601
\nBuildType : Multiprocessor Free
\nCaption : Microsoft Windows 7 Ultimate
\nCodeSet : 1252
\nCountryCode : 1
\n...
\n<\/code><\/p>\n
\n$os | Select -property ([string[]]($os.properties | Select -expand name))
\n<\/code><\/p>\n
\nGet-WmiObject win32_OperatingSystem | foreach {
\n Select -InputObject $_ -Property ([string[]](Select -InputObject $_ -expand Properties | Select -expand Name))
\n}
\n<\/code><\/p>\n
\nPS C:\\> [wmiclass]\"win32_operatingsystem\" | Select -expand Properties | Select name<\/p>\n
\n----
\nBootDevice
\nBuildNumber
\nBuildType
\nCaption
\nCodeSet
\nCountryCode
\n...
\n<\/code><\/p>\n
\n([wmiclass]\"win32_operatingsystem\").Properties | Select -expand Name
\n<\/code><\/p>\n