I have a windows 8 core oem key & I obtained an windows 8.1 iso from windows 8 upgrade site using a retail key. (Because the setup doesn't accept oem keys) After i do a clean installation with a generic key will I be able to activate using my oem key? That downloadable iso is a retail iso version :(

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    If you are eligible to use the Windows Store to install the update then your OEM Windows 8 license can be used to activate a Windows 8.1 installation. You should be aware that the setup doesn't accept any Windows 8 keys. – Ramhound Oct 25 '13 at 10:45
  • yh, I was more worried about the activation. And what I meant was, I wasn't allowed to download the iso with my OEM key. Instead I had to use a retail key which I found on a Google search :) Which makes me afraid to install. Anyway the update is visible on windows store. So I'll try a clean install. thanks :) – Chathuranga Dassanayake Oct 25 '13 at 13:50
  • Your key will be able to be activated based on the fact after you apply the update through the Windows Store it would still have to be activated. – Ramhound Oct 25 '13 at 14:15
  • I got my windows 8 (preinstalled, activated) computer last Wednesday, applied all the updates, then upgraded the next day to 8.1 using the Windows Store. So, one would have assumed that I was eligible. Yet, the following day I got a persistent popup window saying that my copy of Windows needed to be activated. After trying a number of things, I contacted Microsoft support which told me that they could not help me. Windows technical support told me that it should have been valid. I had to use a recovery CD to reinstalled 8 as the partition on which 8 was "saved" could not be found. – André Oct 30 '13 at 12:51
  • Activation worked fine with the OEM key. Thanks @Ramhound – Chathuranga Dassanayake Nov 3 '13 at 11:07

No problem. I was able activate using my windows 8 OEM key after a clean installation with windows 8.1 ISO.

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