Seems fine to me but definitely found Windows 7 more enjoyable. My boot times with 8.1 are fast and I must admit it works quite well on my machines. I'm considering running solid state instead of a hard drive for the operating system. But I'm guessing it would require purchasing a new operating system. Does anyone have a educated guess of how far out Windows 9 is? Also will there be a date for purchase of Windows 8.1 in which Microsoft will let you upgrade to version 9 when it becomes available.