is it possible to install windows 7 on this device?
Yes, but without drivers, so you won’t be able to use it.
because the installation does not start
You need image with uefi boot and integrated usb 3.0 host drivers.
how can I do? okay that of the gigabyte for the 100-200 series?
usb 3.0 drivers you need to download from chipset manufacturer site. You probably have to go through a bunch of drivers to find the right ones.
But it doesn’t make sense, most likely the tablet on this system will work slow , maybe there will be no sound, the touchscreen will not work.
and windows 8.1 is compatible?
Only windows 10 and 90-99% compatibility with some Linux distributions.
and what distribution is it going? i’m trying ubuntu but i have problems with the pen
Fedora Linux should work without problem but not sure about pen.
and something that works the pen?
I don’t have this information