My roommate's Acer Aspire 5253-BZ602 laptop computer is having this same problem. Windows 10 public release version finally began installing itself today, and when the desktop comes up it stays up for about 10 seconds and then starts to flash. Nothing responds to any keyboard or mousepad input. Desktop stays up for about 2 seconds, flashes to black, back to desktop, back to black. Sometimes it stays up long enough for the desktop icons to load, usually it doesn't.
I hope there is some other way to either fix this or recover back to Windows 7 without having to re-install. Is there a way to get to the Acer's internal recovery drive? Does Windows 10 have a Safe Mode startup option, from which I can try to recover his computer?
Anyone have any thoughts or seen the same behavior?
-Doug