RIS detected two computers with same GUID

Most of my computers came pre-setup from the factory, however with all the
updates to various packages we have done over the past couple of years I
thought it would be best just to scrap the computers and start from scratch
on each hard drive.

I setup a RIS image for all my computers and set a bunch of software to
install to the computers via Group Policies in AD. Most all the computers
went flawlessly, but somehow I have two computers that have the same GUID???

I thought that part of the GUID was the MAC address so how could it be
possible for two computers to have the same GUID? The funny thing is that
these two computers have slightly different mother boards which makes it
even more unlikely that their GUID's would be the same.

Is there a way to change the GUID in the bios?



.

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