i followed this guide http://ngine.de/article/id/8/ 1) install Windows 7 into VMWare Workstation 2) make an image of the partition with program like Paragon Partition Manager 3) with Paragon cd (found in Paragon Program files) restore that image on external usb hd 4) start pc with external usb hd but it will not work 5) start pc with Windows 7 dvd and try all recovery possibilities to add a line in bcd and fix mbr 6) start pc with external usb hd but it will crash with BSOD 7) start pc with Ultimate Boot CD for Windows then launch Regedit(remote), select Windows 7 root folder 8) modify windows registry setting Group = System Reserved and Start = 0. Registry should be like this HKLM,"SYSTEM\CurrentControlSet\Services\USBSTOR","DisplayName",0x00000000,"USB Mass Storage Driver" HKLM,"SYSTEM\CurrentControlSet\Services\USBSTOR","ErrorControl",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\USBSTOR","Group",0x00000000,"System Reserved" HKLM,"SYSTEM\CurrentControlSet\Services\USBSTOR","ImagePath",0x00020000,"system32\DRIVERS\USBSTOR.SYS" HKLM,"SYSTEM\CurrentControlSet\Services\USBSTOR","Start",0x00010001,0 HKLM,"SYSTEM\CurrentControlSet\Services\USBSTOR","Type",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\usbehci","DisplayName",0x00000000,"USB 2.0 Enhanced Host Controller Miniport Driver" HKLM,"SYSTEM\CurrentControlSet\Services\usbehci","ErrorControl",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\usbehci","Group",0x00000000,"System Reserved" HKLM,"SYSTEM\CurrentControlSet\Services\usbehci","ImagePath",0x00020000,"system32\DRIVERS\usbehci.sys" HKLM,"SYSTEM\CurrentControlSet\Services\usbehci","Start",0x00010001,0 HKLM,"SYSTEM\CurrentControlSet\Services\usbehci","Type",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","DisplayName",0x00000000,"USB2 Enabled Hub" HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","ErrorControl",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","Group",0x00000000,"System Reserved" HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","ImagePath",0x00020000,"system32\DRIVERS\usbhub.sys" HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","Start",0x00010001,0 HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","Type",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","DisplayName",0x00000000,"Microsoft USB Universal Host Controller Miniport Driver" HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","ErrorControl",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","Group",0x00000000,"System Reserved" HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","ImagePath",0x00020000,"system32\DRIVERS\usbuhci.sys" HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","Start",0x00010001,0 HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","Type",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","DisplayName",0x00000000,"Microsoft USB Open Host Controller Miniport Driver" HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","ErrorControl",0x00010001,1 HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","Group",0x00000000,"System Reserved" HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","ImagePath",0x00020000,"system32\DRIVERS\usbohci.sys" HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","Start",0x00010001,0 HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","Type",0x00010001,1 9) restart pc and it will work 9bis) If you restart because of hardware changes, it will not work so you have to repeat steps 7-8-9. Maybe you should (i have not tested it) redo steps 7-8 before restart Note: you can use similar programs like Partition Magic, VirtualBox, any WinPE ecc EDIT: i have just found PWBoot Project This post has been promoted to an article