VBScript to Check Free Disk Space

Following script helps to find free disk space available on C-Drive, change the Drive letter in the script if you want to find free disk space of any other drive.

strComputer = "." 
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\CIMV2") 
Set colItems = objWMIService.ExecQuery( _
    "SELECT * FROM Win32_LogicalDisk WHERE DeviceID = 'C:'",,48) 
For Each objItem in colItems 
    Bytes = objItem.FreeSpace

If Bytes >= 1073741824 Then
	SetBytes = Round(FormatNumber(Bytes / 1024 / 1024 / 1024, 2), 0) & " GB"
ElseIf Bytes >= 1048576 Then
	SetBytes = Round(FormatNumber(Bytes / 1024 / 1024, 2), 0) & " MB"
ElseIf Bytes >= 1024 Then
	SetBytes = Round(FormatNumber(Bytes / 1024, 2), 0) & " KB"
ElseIf Bytes < 1024 Then
	SetBytes = Bytes & " Bytes"
Else
	SetBytes = "0 Bytes"
End If

Wscript.Echo "OUTPUT = " & SetBytes

Next