'Windows Update' (win7) blocked by Windows 10 update

Hi,

I've got a problem with my Windows 7 pro. Like many others I received the Windows 10 reservation icon a while ago. I reserved Win 10 pro and it started downloading one day.
Now Windows 10 is fully downloaded and it offers me to update the OS.
But I don't want to update immediately - I'd like to wait some time before upgrading, to make sure that all my hard- and sofware works fine and that the biggest issues are fixed before I upgrade.

Unfortunately my 'windows update' seems to be blocked by the windows 10 update. I can't search for other updates as the system tells me that I have to restart the computer and apply that (win10) update first, prior searching for further updates (for win7).
I canceled the windows 10 reservation with no success - the reservation is canceled, according to the win10 tool, but the windows 10 update is still downloaded and in the windows update queue.

How can I get rid of the Windows 10 update from the windows update' and update to Win10 only in a few months?

TNX,
Plasma2000