Installing OEM Windows 7 with upgraded motherboard.
Currently I am using Windows 7 Home Premium, which was installed during the free upgrade period with Vista. Everything installed fine, and since then I've changed almost every part in my computer except for my motherboard, with no problems using the phone
activation service. I'm planning on changing out my motherboard, though, and I'm wondering if the phone activation service will still work when I change the motherboard. It is still only installed on one computer, because I'm starting to get the feeling parts
of my motherboard are failing anyway. Will Microsoft activate Windows with my new motherboard and deactivate it from my old one, or am I going to need a new copy of Windows?
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What Exactly Can One Change With An OEM Operating System?
You shouldn't have a problem replacing any parts other then the motherboard, although if you replace too many of the computers parts you may need to reactivate. If you replace the motherboard you will need to reactivate (and likely reinstall), which (according
to some) you can do. However there is also some OEM documentation stating that replacing the motherboard for reasons other then defect creates a new computer and the OEM license is no longer valid.
Many posts here say you can replace the motherboard, many others say you can't. Some of the confusion is because the OEM EULA doesn't specifically say replacing the motherboard creates a new computer, that language comes from a FAQ page about the OEM license
(and a FAQ page is not part of the EULA). But Microsoft also has another OEM webpage saying you can replace the motherboard and still use the OEM license - causing much confusion on this topic.
Because Microsoft says you can replace the motherboard on one page and the OEM EULA doesn't say otherwise, you should be able to replace the motherboard. However, if your Windows install disk is from a computer manufacturer the disk might be locked to the motherboards
BIOS which would prevent you from being able to install Windows on a motherboard not made by that computer manufacturer. Also, OEM copies are bound to the first computer installed on and are not transferable (can't be moved to a different computer).