(I asked this in the general windows forum but this may be a more appropriate place)
I have perpetual developer licences for Windows 8 under a now discontinued msdn subscription. My main box has Windows 8 ent (MAK license). I also have (as part of the ex msdn subscription) Windows 8 Pro retail licences.
I wish to migrate to windows 8.1 but do not wish to re-install all my developer software (Visual studio + sql server plus others) I think it would be possible to upgrade my win 8 pro licences to 8.1 pro as part of the free upgrade (presumably via the store) if I could convert/downgrade my 8 ent install to 8 pro (i.e. downgrade first).
Is any of this possible without a current msdn or technet subscription?
(further info : tried https://www.microsoft.com/Licensing/servicecenter/default.aspx and could see many of my kms/mak keys but nothing for windows 8 or 8.1. Also checked my msdn keys (offline backup) and it looks as it the keys came from here, now when i log into msdn I see nothing as expected. Seems odd my details under that vlsc link contains no ref to windows 8 as it was certainly rtm months prior to my msdn sub expiring Nov 2012)
Any advice would be gratefully received.
Thank you.