Had a ton of issues with8.0 and the oem 8.1 update on this Lenovo i7 8gb ram. it would literally crash and burn 1 out of 3 boots. I am using it to work on networks in the field and it was embarrassing to work with. I pulled the factory drive and dropped 7 on it and have had no issues what so ever. I tried fully updating 8 on it a couple weeks ago and thought it might be ok till I took it home and first boot out of the bag I get the fancy " oops something went wrong". 3 reboots later I finally got back in. put the 7 drive back in the next day. I know it's a driver issue but I have gone up and down in drivers for over two months. 7 works fine. I'll look at 9 on a VM and see what it looks like. I didn't mind the gui so much I guess. I wasn't impressed with it but don't hate it. to me it's jus bleh.