I have ordered a backup disk from Microsoft after having downloaded win 8 pro, what will I receive,32 bit,64 bit or both?
If you ordered the DVD from the Windows 8 Upgrade Assistant
or separately from here
from the link in your order confirmation email, then you will get the same 32-bit or 64-bit Windows 8 installation DVD as the Windows installed on the computer you ordered the DVD on. If you ordered a DVD in say 64-bit Windows 7, then you will get a 64-bit DVD. If you ordered a DVD in say 32-bit Windows 7, then you will get a 32-bit DVD.
Can I use the store bought win 8 pro disks with the COA of the downloaded win 8 pro?
If the store bought version is not an OEM or System Builder copy, then yes.
Hope this helps,