It works on and off. After 10 times attempts you might be successful to run the windows.  However after 10 to 15 min of usage  it will crash and restart.I did update the windows .also all recommended updates. It didn't  any difference. This is the first time I got refurbished device. Really disappointed waste of my time. I am so upset, I really want to throw it out. I never like to put a bad review even if I don't like the product, but this one really made me angry.