Hello Colok,

We are very sorry for the problem you encountered. As for this problem, please create a bootable PE disk, then boot your computer from the bootable disk. After booting successfully, please click Start, enter and run regedit, then click File on the top menu--Import to load this file to the registry: C\windows\system32\config\system
The next, please follow this path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{71a27cdd-812a-11d0-bec7-08002be2092f} then delete the ambakdrv under UpperFilters in the right column. After that, you may boot your computer.


In addition, we have updated the version 3.1 file on the site, please download the new file to install: http://www.backup-utility.com/downloads.html
Sincerely sorry for the inconvenience has caused you.


If you have any other questions or suggestions, please feel free to contact us back.