Can I use a Windows 7 starter key to activate windows 10 home 64-bit?

Hello!
Microsoft said that with 1511 build we can now enter a Windows 7/8/8.1 licence key to activate windows 10 until july... but not so much more information whatsoever.
I have a Windows 7 starter spare product key. I guess it's 32-bit (since I never heard of 64-bit version).
I would like to know if with that key I could activate a clean copy of windows 10 home 64-bit ? I can't find any source to confirm that matter, and I don't really want to test & try.

Thank you for you help!

You have to upgrade a copy of win 7/8/8.1 already on a PC with windows 10 before you can do a clean install on the same machine.

So you'd need to install windows 7 using that key first.

The upgrade process is what creates the windows 10 hash key that the installation servers recognise when you do a clean install.

The upgrade copy of Windows 10 matches what's already on the PC already , so I think you'd only be able to install the 32 bit version initially.

I can't see an issue with then doing a clean install of 64bit win 10 afterwards when the PC has been upgraded to windows 10 from 7 though.

pomdapi said:

Microsoft said that with 1511 build we can now enter a Windows 7/8/8.1 licence key to activate windows 10 until july... but not so much more information whatsoever.
I have a Windows 7 starter spare product key. I guess it's 32-bit (since I never heard of 64-bit version).
I would like to know if with that key I could activate a clean copy of windows 10 home 64-bit ? I can't find any source to confirm that matter, and I don't really want to test & try

Product keys are not linked to 32 or 64 bit. You can clean install either. You can't upgrade from 32 bit to 64 bit - you must do a clean install.

7 starter will allow you to install 10 Home. Can Windows 7 Starter be upgraded to 10 - Microsoft Community

They may be linked to the original PC though. If you have a OEM key it is only for that PC and isn't supposed to be transferable to another new computer. If you bought the key separately (normally called "retail") it can be transferred and installed anywhere (but only be installed on one PC at a time obviously).

Wullail said:

You have to upgrade a copy of win 7/8/8.1 already on a PC with windows 10 before you can do a clean install on the same machine.

That was true in the past (on build 10240) but since the November release (1511 or build 10586) this is no longer required. You can clean install directly.