Can I run Win-7 Pro x64 on it?
no, this is an arm chip there was never an arm version of 7
It is theoretically possible that you might be able to run windows 8.1 arm like they ran on the RT tablets just maybe.
but there are a lot of decent linux distros that will be very happy to run on it.
anyway sounds like you probably want a pi4 you can run win10 or 11 on that.
Thankfully, no Microsoft will work. This is a big tech free zone.