Upgrading the hardware might affect your original OEM Windows 7 installation.
Upgrading the hardware might affect your original OEM Windows 7 installation.
I purchased an OEM PC and modified it with a new case, power supply, and CPU cooler. I also added a graphics card and case fans. My plan is to replace the motherboard later and possibly change the RAM in the future. I’m worried about losing my Windows installation if I do this. I’ve heard mixed advice, so I need a clear answer now. If I decide to keep the RAM, I’ll have to swap the motherboard. Thanks, Grant.
Mr_Floobiful
01-16-2026, 10:47 PM #5Yes, that’s generally correct. After installing a new board, your PC will boot into Windows, but the license might not be recognized until you contact Microsoft to activate it.
The OEM license for Windows is included with your motherboard. If you replace it and the new one doesn’t match the old one (or if the CPU is faulty and you can’t locate it), you won’t be able to move your license. You must purchase a fresh Windows license instead.
Aceofspadez410
01-25-2026, 01:48 PM #7You should be fine. You can also have two PC's running the same W7 activation code at the same time. I know because I am doing it,. Don't tell anyone though, I gave my last PC to my sister and built a new PC, couldn't get Mint to run properly so went to W7 and it worked fine.
LukinhasPvP13
01-31-2026, 01:01 AM #9I discussed with Microsoft and they confirmed I can modify the board, after which their key will be activated.
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Epicbunny3
02-06-2026, 09:46 PM #10It would be great to hear that! I hope Microsoft had a similar option for Office 2013. They wouldn't have transferred it automatically. '