hello I found a solution :
you have to download Driver Signature Enforcement Overrider 1.3bDownloads
quote:
So how do I use it?
First and foremost; you are using this software at your own risk, we do not take responsibility for any damages to your system, but we do not believe it can harm anyone anyway. Secondly, User Account Control (UAC) must be disabled in-order to use this tool as well.
1. Go ahead download and launch the application from the link below. Inside its main menu, press on the “Enable Test Mode” button and follow the instructions on the screen. This will enable TESTSIGNING mode, which allows unverified system files to be loaded.
2. Now all you have to do is to add the unverified signature to the required system files. To do so press on the “Sign a System File” button from the main menu, and enter specific filename including full path. Here: if XBCD.sys from
, you should type: “C:WindowsSystem32driversXBCD.sys”.
After you enabled Test Mode and added signatures to the required system files, they should bypass Windows’s driver signature enforcement and load without any issues. However, if for some reason you are interested to revert it, you can re-launch the application, choose “Disable Test Mode” from the main menu, and reboot. If you encounter issues or having questions, feel free to post it on our forums.
It work for me on Windows seven x64 RC1 ...
Now XBCD setup utility work fine.
Good luck ;-)