No, an OEM key for Windows 8 Pro cannot activate Windows 7 Ultimate.
No, an OEM key for Windows 8 Pro cannot activate Windows 7 Ultimate.
Has anyone experience with this? I'm trying to activate a (already installed) copy of Win7 in order to upgrade to Windows 10. Depending on what works I'll buy a 8 or 10 key. I'm pretty sure that a 10 Key won't work to activate 7 Or is there another way to Upgrade to Win10 without having to reinstall Windows?
Only a Windows 7 activation code can start Windows 7, but it will also work for Windows 10.
Based on what I understand, setting up Windows 10 from scratch offers a smoother process compared to upgrading, particularly when using an SSD.
There’s no need to just reinstall. Using the original activation keys won’t work for Windows 7. A fresh installation is the best option.