Question

In wmic, ‘-‘ is special characters.
how can use negative number for search?
just like

wmic volume where serialnumber=-1874012763

because ‘-‘ is sepcial character, this command is not work.

how can i assign negative number for search in wmic?

Answer 1

The SerialNumber value from Win32_Volume class is an unsigned integer (uint32), there’s no way to query an unsigned integer value using WMIC since you cannot convert the value, you can only list all values:

wmic /namespace:\\root\cimv2 path Win32_Volume get SerialNumber /value

As far as I know, you can overcome querying an unsigned integer value by scripting it. For example using VBS quering for an unsigned integer value of ‘-1435665788’ (my systems C drive):

Option Explicit
Const SN_VAL=-1435665788
Dim oWMI, oQRY, oItm, sComp, sMsg
sComp = "."
Set oWMI = GetObject("winmgmts:{impersonationLevel=impersonate,authenticationLevel=pktPrivacy}!\\" & sComp & "\root\cimv2")
Set oQRY = oWMI.ExecQuery("select * from Win32_Volume") 
For Each oItm In oQRY 
  If oItm.SerialNumber = SN_VAL Then 
    MsgBox "  DriveLetter: " & oItm.DriveLetter & vbCrLf & _
           " SerialNumber: " & oItm.SerialNumber, vbOkOnly, "WMI Results"
  End If
Next 
Set oQRY = Nothing
Set oWMI = Nothing
WScript.Quit(0)

The above prompts the drive letter and serial number for the given unsigned integer value. Hope this helps 😉