New
#11
OK, that's a big update, for sure :)
Effectively you will be doing an in-place upgrade so it will find new drivers and basically create a new windows directory leaving your old one in a separate folder called windows.old. It will copy over your old profile though so if there was anything wrong with it, it could carry over into your new version. If so you may need to go through the procedure of creating a new account again.
Also note that for the first few start ups on the new Creators update the boot timings will be longer as the new system sorts itself out with background processes.