Use the OEM-COA key on the COA sticker on machine and illustrated in
Clean Reinstall - Factory OEM Windows 7.
This shifts the control over activation from incompetent OEM Tech Support (only free for a year) to MS servers which protect you from capricious OEM policies trying to dictate how you can reinstall the OS which
you own - like not supporting another bit-version when they're required to by their EULA with MS. It cuts the OEM out of the activation process so that your Win7 activation is directly with MS, which is it's maker and guardian.
Hi greg,
Greetings.
Which
EULA with MS are you referring to and where I can see it? Please let us know where we can see it to confirm it. ( OK, I have made a search for "OEM's EULA with Microsoft" and can't find anything as such.)
Not withstanding:
When an end-user buys a Retail Windows 7 (FPP), Microsoft does not know
his system capabilities, and provides both 32 bit and 64 bit media. He is entitled to use any one (but not both). Yes , he can also change to any version at anytime and Microsoft will support it (free or paid).
This Retail product costs almost twice as much the OEM-bought, and so Microsoft can afford to support both versions.
Change over to OEM:
One can purchase OEM (System Builder) 32 bit version seperately and OEM (System Builder) version 64bit seperately.
(They are not sold in pairs.) Ask for a 32 bit, the SB will build and sell one with the 32 bit media and also support your 32 bit machine. Ask for a 64 bit machine and you will get it with the 64 bit media and support. That is the contract one enters with the OEM-SB knowingly. And the OEM media costs half as much as the Retail (FPP)
The same applies to Royalty OEMs. The end user has the
option to buy a 32 bit machine or a 64 bit machine and the OEM will give you the appropriate Reinstall/Recovery media and support it. (He also has the option not to buy if the OEM is not willing to support both the versions.)
It is quite obvious that the OEM cannot install both versions on the same machine

, give both media to the end-user, give the option to choose any one and support either of them.
After having willingly - and not by any force - entered into a contract for support for the OEM-installed version, to crib that the OEM is not supporting the other version is unfair. And again for the cost you get the OEM Windows 7 one cannot expect that. Cost Vs benefit.
If one has the change-over option in mind and the OEM is not willing to support it, the end-user need not purchase any 32 bit or 64 bit machine from the OEM. He should have straight-away gone for the retail (FPP).(go for a laptop with free linux and install the retail.)
I shall take a break now and come back again.
Regards.
jumanji