you get a one month grace period to try out w10 after upgrading if you dont like it you need to revert back to your old OS before the month is up.

once the one month grace period has expiered...

try entering your tablets bios (you will need to check your tablet manufacures instructions usualy on their website for how to access the bios)
and change from UEFI to legacy
iirc usb devices will...

if you realy want to restrict whats running on your machine and accessing the interweb try using comodo internet security

HIPS - this can be set at its highest level detects almost any software...