I have a yoga 2 tablet with a full HDD I have deleted all app's and files and still there isn't space to rund windows upgrades, I'm told that win8 and 10 use about 16gig of space on the HDD total space of my HDD is 32gig but I see only 28.8gig, I cannot put a new copy of win10 on it as there's insufficient space available, has any body any suggestions!!!