Win 7 does not check OS disks like older versions and there should be no reason whatsoever for it to be in the drive. If the PC is a good deal anyway I would buy your own copy of Win 7, Ultimate being a bit OTT for home use tho.
OnePlus 5 review
See the work of famous artists playing with toys
iPad Pro 10.5in (2017) review
Comment faire une capture d’écran sur un Mac ?