I have an Asus N550JV Laptop that came with W8.0 which I updated to 8.1 when it came out. Computer did a regular windows update last weekend and afterwards the computer was stuck in recovery mode. reset or refresh would not do anything (drive locked error) or even reloading an old image. Could only get into command prompt. Asus told me to do chkdsk to unlock drive, did not work. They basically said to send them the computer and they'll re-image it and quoted $165. Of course, I thought this was BS and booted the computer with an 8.1 USB stick created with the Microsoft boot disc utility which worked no problem. I was hoping it would grab the embedded key and all would be good, nope. Asus explained that since the computer originally came with W8.0 installing 8.1 would not grab the key, and there is no utility to easily make a bootable USB to try to boot with the original windows 8; well, there is....but you need a key. kinda of a vicious circle. I long for the good ole days where if you had an OS problem you just grabbed your discs and reloaded it and punch in the key from sticker on the side of the computer. So, now frustrated, I'm left with having to pay Asus to reload the OS image (plus shipping), pay MS $149 for their one year service program where they 'guarantee' to fix my issue.....or just buy some windows 8.1 discs and reload the OS, which is the cheaper option and will actually have the discs and a key that I can hold in my hand rather than buried in the bios. Only other choice now is either hobble along with a non-activated version of 8.1 and buy W10 when it comes out, or get 8.1 and do the free update to W10 MS in offering for a year.