+ 0 Votes This is how it goes. seanferd 3 years ago Experience with past OEM versions of Windows may have been different. <i>OEM versions of Windows 7 are identical to Full License Retail versions except for the following: - OEM versions do not offer any free Microsoft direct support from Microsoft support personnel - OEM licenses are tied to the very first computer you install and activate it on - OEM versions allow all hardware upgrades except for an upgrade to a different model motherboard - OEM versions cannot be used to directly upgrade from an older Windows operating system Carey Frisch</i> (An MS MVP) Source: http://social.answers.microsoft.com/Forums/en-US/w7install/thread/fae7b2ab-c530-45e6-aeb3-cc55cf7b9231 + 0 Votes OEM Version of Win 7 rwbyshe 3 years ago Thanks for all your inputs. My recommendation to my client will be to hold off and simply wait until he purchases his new PC and he'll get a valid copy of Win 7 installed on the new PC. This is what I wanted him to do anyway but I felt I had to honestly answer his question. + 0 Votes No can do... cmiller5400 3 years ago As Seanferd stated, you can't do what your client asks legally. And yes, Microsoft can and does track activations (ran into issues with Win XP activations a while back after changing video card (it died) and adding memory at the same time). I have to explain this to my clients constantly. They don't "OWN" the software and use it unlimited times, they just purchase the "RIGHT TO USE" the software according to the EULA (usually only for one machine). Huge penalty's if you get caught pirating software. + 0 Votes As stated above this isn't Legal OH Smeg 3 years ago Or more importantly not within the EULA that the user agrees to when they first Open Windows. With Activations when you make 3 changes to the Hardware you need to reactivate the Software and if this happens a lot for instance with a Test Machine that you test new Hardware on you will run into problems with Reactivation. Remember a change is also returning the system to Original Condition after testing a new Video Card, So fitting the Video Card is 1 Change and refitting the original Video Card is another change. Fitting 6 new SCSI HDD under XP resulted in a visit from M$ Legal who was convinced that i was Pirating their Software so in answer to your question Yes M$ do track their Software and Activations. But probably much more importantly will his 4 year old system actually run 7? Have you checked it with the Windows 7 Upgrade Adviser? http://www.microsoft.com/downloads/en/details.aspx?FamilyID=1b544e90-7659-4bd9-9e51-2497c146af15 Seems fairly pointless to buy a copy of 7 if it's not going to run on the existing hardware. However if he's purchasing a new PC in a year or so unless he has some White Box Shop to sell him a Bare Metal computer they all come with a Windows OS installed so when he buys that new computer in a year or so time it will come with 7 preloaded. Col + 0 Votes OEM Version of Win 7 rwbyshe 3 years ago Thanks for all your inputs. My recommendation to my client will be to hold off and simply wait until he purchases his new PC and he'll get a valid copy of Win 7 installed on the new PC. This is what I wanted him to do anyway but I felt I had to honestly answer his question.