I'm returning the 2.5. I will be waiting until I get my Asus All In One working properly and then possibly continue with this question after I order a 3.5 enclosure.

I'm working with Asus tech support to get my All in One to boot up to Windows. I sent it back once and they reinstalled the system. Upon its return to me I have had 6 failed start ups. It goes to an Asus screen with Press F2, ESC, F9 options. I can turn it off, and it will boot to windows properly after that. But this must have a cause and I'm looking for it.

So far I have done these things:
Defragged C drive
Ran Check Disk (in properties)
Uninstalled Asus Live Update (since it kept asking for permission to change my system) and there weren't any updates that I needed.
Asus says it is an operating system problem.

I need to wait until the next time it fails to boot to Windows to try more things.
Any suggestions: