Hi, I'm not sure if this is a surface thing or Windows 10 but anyway I just upgraded on my Surface pro 3 and was learning my way around the new interface and tried to change the lock screen picture. Every time I selected one to look at it didn't update in the preview and I just had the spinning dots showing it was trying to do something in the preview. It just stayed like that and I couldn't actually change the lock screen pic. I tried restarting, using the images given and browsing for images and I got the same result. Has anyone else had this issue? many thanks Sassi.