CODEWITHSUNDEEP
wmic
Shailendara Srivastava
Shailendara Srivastava

Reputation: 31

How to change uuid wmic csproduct get uuid

I want to change my system uuid by command i am getting it by typing wmic csproduct get uuid but unable to edit it. my id is FFFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFF

Upvotes: 2

Views: 14637

Answers (2)

Vikas Deolaliker
Vikas Deolaliker

Reputation: 1212

Do this

  1. Create a MOF file #pragma namespace("\\.\root\CIMv2") [DYNPROPS] class Win32_COMPUTERSYSTEMPRODUCT { [key] string IdentifyingNumber; string UUID;

};[DYNPROPS] instance of Win32_COMPUTERSYSTEMPRODUCT { IdentifyingNumber = "128bitFakeID"; UUID = "128bitfakeuuid"; };

  1. Compile the MOF file

mofcomp ./thefileabove.mof

  1. Query the WBEM

PS C:\Users\opc> wmic csproduct IdentifyingNumber UUID 128bitFakeID 128bitfakeuuid

Upvotes: 0

JosefZ
JosefZ

Reputation: 30123

Read Win32_ComputerSystemProduct class MSDN article:

The Win32_ComputerSystemProduct WMI class represents a product. This includes software and hardware used on this computer system.

The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Properties are listed in alphabetic order, not MOF order.

Syntax

[Dynamic, Provider("CIMWin32"), UUID("{FAF76B96-798C-11D2-AAD1-006008C78BC7}"), AMENDMENT]
class Win32_ComputerSystemProduct : CIM_Product
{
  string Caption;
  string Description;
  string IdentifyingNumber;
  string Name;
  string SKUNumber;
  string UUID;
  string Vendor;
  string Version;
};

All properties (listed above) are read-only, for instance

UUID

Data type: string
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 1|UUID")

Universally unique identifier (UUID) for this product. A UUID is a 128-bit identifier that is guaranteed to be different from other generated UUIDs. If a UUID is not available, a UUID of all zeros is used.

This value comes from the UUID member of the System Information structure in the SMBIOS information.

Conclusion: you cannot change system UUID via any WMI method. Ask Google and SuperUser for another way (if some exists at all).

A UUID is an identifier that is designed to be unique across both time and space. It requires no central registration process. The UUID is 128 bits long. Its format is described in RFC 4122: A Universally Unique IDentifier (UUID) URN Namespace.

Upvotes: 4

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