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How can I get PC's GUID

Posted on 2001-09-11
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How can I get PC's GUID? With what software can I do it?

What is the GUID have relationship to?
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Question by:Richard_Reynolds
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by:GUEEN
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The GUID (Globally unique identifier) should uniquely identify your computer - it is like a fingerprint that an identifies individual - useful for machine ID's.

GUID links:
http://www.guid.org/
http://www.desertware.com/vbuniverse/createguid.html
http://www.junkbusters.com/microsoft.html#history
http://grc.com/downloaders.htm
http://www.skylarkutilities.com/download.pcs?make-guid






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by:Richard_Reynolds
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Can you tell me what software can I use to read the PC's GUID when the machine without any os?
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by:GUEEN
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Huh?
You want software to run on a machine with no OS???
I don't think so!
GUID is mainly an alphanumeric identifier used to indicate a unique installation of a product. . .
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by:Richard_Reynolds
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That's mean the GUID have relation to software you installed ?

If you install office 2k, you may get a GUID.
If you install another software, you maybe get another GUID, That's right?
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by:GUEEN
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Yes that sounds correct.
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by:jhance
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>>Can you tell me what software can I use to read the PC's GUID when the machine without any os?

The GUID is an identifier created by WINDOWS.  So if your machine has no OS, it also (by definition) has no GUID.
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by:GUEEN
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I do know that Microsoft has some type of 'fingerprint' with XP - only I don't think that is a GUID. j - you know anything about that?
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by:ajprice
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A GUID is used just for order's sake in an Active Directory forest.  When you join an AD domain, the Infrastructure Master assigns you a unique 128-bit hexidecimal code that identifies your computer, kinda like a social security number for humans, noone will ever have the same one as you.

I've never heard of any software caring about what your GUID.  And it's impossible to have a GUID without a version of windows loaded.

To find it (computer has to have an OS up and loaded) open up the registry and go to HKEY_local_machine\system\currentcontrolset\services\TCPIP\parameters\interfaces\

That's where the GUIDs live. Only one GUID per machine unless you have a multihoned computer (more than one NIC acting as a separate machine.  
It will look something like TY75U2AI-LL23-V4C9-3577YSS1

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by:stevenlewis
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some newer motherboards have them in the bios
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by:ajprice
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Have a GUID in the BIOS?  It that's the case then that would be pretty neat.
 
Does the OS Flash it's own BIOS?  How does the GUID get stored in the BIOS?  What happens if you move the CPU to a different forest?  
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by:Richard_Reynolds
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>>some newer motherboards have them in the bios

That's what I said. Ok, how can I get this GUID from a machine without os?
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by:Richard_Reynolds
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These comes from Microsoft's Training Kit:

>>Locating the GUID for Client Computers
>>The computer's GUID appears on the following:

>>The label on the side of the computer case
>>The label inside the computer case
>>The BIOS of the client computer
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by:stevenlewis
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Richard_Reynolds these are newer machines that have this feature. older machines did not have a GUID
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by:stevenlewis
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as I'm sure you have read, that is a security feature when pre-staging to set up for RIS. I have only seen one question about it in my sample tests for the MCSE w2k
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by:AvonWyss
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Guys,

A GUID has *nothing* to do with a computer, an OS or a software package. A GUID is a globally unique identifier. A GUID can be computed at any time and will be (theoretically) guaranteed to be unique around the world. Because of this, it's a useful tool for many sitations where someone want to be able to "tag" some piece of hardware or software.

Every COM object has a GUID, and many databases which need to be able to replicate are also using GUIDs to be able to have unique record identifications when replicating their data (for instance, the AD is such a database).

Now also the computer is assigned a GUID: http://www.microsoft.com/windows2000/en/server/help/sag_RIS_pro_Client_GUID.htm
That's probably the one you're looking for. However, what do you need it for?
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by:ajprice
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I'm starting to believe that there are more uses for the word GUID out there than one, and we're getting confused on what context it's being used in...

In my first post, I was referring the the Active Directory GUID that is assigned by Windows 2000 when you create an object such as a user, computer, printer, share... whatever.  
  "GUIDs are assigned according to an algorithm that uses time information that is determined when the object is created and random physical information to create a 128 bit hexidecial representation that guarantees uniqueness in the forest."

Apparantly there are other GUIDs in the world than just Windows 2000...

Doesn't sound like that's the one you're looking for though.
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by:AvonWyss
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Well, if you want to see what GUIDs look alike:
* Open regedit
* expand the HKEY_CLASSES_ROOT branch, and in it the CLSID branch
* You will see lots of entries like this: {f5078f27-c551-11d3-89b9-0000f81fe221}
    These are GUIDs. (Actueally the ones of the registered COM objects in Windows.)

ajprince, the uniqueness makes them useful not only in AD but in may other situations. The computation algorithm of these values is always the same (as you correctly wrote, time and machine-dependent elements arte included in the calculation, making a unique number which always changes.)
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by:kupriaa1
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Yes however in Active Directory computers are not the only objects that have GUIDS. Users and groups have them also.  GUIDS in AD are how (in a simple way) SIDS are related throughout a forest
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by:Richard_Reynolds
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In fact. When I want implement RIS, I should creat a computer account for the client. When I choose to create a managed PC. I'm asked to input a GUID.

I want to know, if the PC is a new PC(without OS, in most time, it should be), how can I get the GUID?
From:
1.)A label on the side of the computer case.
2.)A label within the computer case.
3.)The basic input/output system (BIOS) of the client computer. (Info come from Microsoft:http://www.microsoft.com/windows2000/en/server/help/sag_RIS_pro_Client_GUID.htm)

But if I can't get it from above 3 ways. how I get it? Thanks a lot.
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by:stevenlewis
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YOu don't, leave it blank
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by:ajprice
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OK, Now I see where we're going.

You're looking for the UUID, not the GUID.

The Universal Unique Identifier is what is used for prestaging a computer for RIS and can textbook be found on the case or in the BIOS.  Honestly I've never seen either, but I haven't been looking in the BIOS much.

The GUID is something different that what you are needing.

If it's not on the case or in the bios... Microsoft in all their wisdom suggests you contact the computer manufacturer.
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by:cempasha
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Hi Richard_Reynolds

- This question is still open and needs to be closed. If any of the comments above helped you, please accept that comment as an answer. If not please send an update about your issue so that the question can be finalised. Thank you

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3 open questions:
03/05/03 http:Q_20538955.html "A Question about Microsft Script Encoder"
02/19/03 http:Q_20520184.html "Why Exchange2k Can't Receive any Email"
09/11/01 http:Q_20181378.html "How can I get PC's GUID"
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by:cempasha
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Richard_Reynolds,
No comment has been added lately (0 days), so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area for this question:

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