My 68 year old father purchased his first computer (an asus laptop). I went to his house and helped him put all windows 8.1 compliant anti virus, firewall, and system utility on his computer, then walked him through getting ready for win 8.1. windows downloaded 200+ updates before he could try to download 8.1. with that done, he went to the windows store and tried to download win 8.1, but it kept failing. he called asus support, which told him that I wasn't qualified to install things and that I had downloaded a ton of viruses (all programs brought to his house on scanned usb drive) and that his computer was guaranteed to crash, but that they could fix it remotely for $200 (been working on computers since 1995). I had him do a virus scan, and also download malware bytes and scan. there was 1 false positive between both scans! the support technician tried to swindle my father out of $200 by lying and instigating panic in him. it occurred to me that after 200+ updates that maybe windows installer was slightly messed up. sure enough after unregistering and re-registering windows installer, everything worked as advertised. if anyone from asus can read this, your contracted tech support is felonious... I have half a notion to call the bbb on your inept and supposedly windows certified technicians that are centered in west palm beach, fl. they wouldn't know malware bytes from mosquito bites.