System is an HP highend media center laptop (I7 - dual graphics, lots of features) that is currently running Win 8 pro x64.  Tried to install the Win 8.1 preview - downloaded from the marketplace - downloads fine, does the initial steps of the install all the way through "Gathering info" (seems to stop there) and then at some point comes back with message that installation failed (Try again, Cancel) - error code 0x8007001F.  Does anyone have any idea what this means and what I can do to resolve this?

TIA - Ermine Todd

A device connected to your Laptop fails:

C:\Users\Andr>err 0x8007001F
# as an HRESULT: Severity: FAILURE (1), FACILITY_WIN32 (0x7), Code 0x1f
# for hex 0x1f / decimal 31
  ERROR_GEN_FAILURE                                              winerror.h
# A device attached to the system is not functioning.
# 1 matches found for "0x8007001F"

remove all attahced (USB) devices and test again.

This didn't work for me, I unplugged all but the power, mouse, keyboard, and monitors and I still got the error. Any idea why?

do you have the same error code?

i have the same problem and same message .

Don't really have any more info but all of the USB devices have been disconnected - still get the same error: is there a log file somewhere that can be reviewed?  Additionally, is there a chance that the ISO install would behave differently?

try to upload the setup logs file.

http://technet.microsoft.com/en-us/library/hh824819.aspx

Hi,

Please boot to clean boot and try again:

How to perform a clean boot to troubleshoot a problem in Windows 8, Windows 7, or Windows Vista
http://support.microsoft.com/kb/929135

If the issue persists, please also check the installation log as Andre suggested.

Thanks.