Here we are almost five months later and this same issue is confounding I dunno how many thousands of folks as evidenced all over the Internet. I have spent hours and hours on this. Aspire V5 122P. I've reset the whole os, updated the BIOS here, got all Windows updates including the optional ones, disabled antivirus, etc. etc. It gets as far as downloading, analyzing, updating, gathering info and then "we're installing Windows 8.1 We'll let you know when we're done". Then about four hours later, "This app wasn't installed. Something happened..." Very useful information - not! What is the friggin deal with this?