It work's fine on my desktop and Asus netbook. Just make sure if you have documents, etc. on a 2nd hard drive, too unplug it before upgrading to 8.1. If you leave it plugged in, you'll most definitely have serious issue's on both the desktop and modern side's. Also, if you have 8 now, do a search to find out if the modern app's you downloaded from the store are compatible with 8.1. Some aren't. If any are incompatible, uninstall them first. Also, do a search on how to increase the system reserved partition in 8.1 by 100 mbs. Otherwise the system image won't work, because the default system reserved size is too small for shadow copy to work. Also, make the system image, before enabling file history, otherwise it won't work. Those are 2 stupid bug's Microsoft should've fixed, but haven't.