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problems booting vista on an external drive

Discussion in 'Windows Vista' started by LordPython, Jan 11, 2011.

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  1. LordPython

    LordPython Thread Starter

    Nov 12, 2003
    I have a laptop that came with Vista pre-installed. I have recently got a bigger HD and installed Windows 7 to it. I am now wanting to use my old Vista drive as an external. I am fully able to connect to the drive via usb and copy files and such, but I want to boot up on it, as there are some programs installed on it I want to run.

    I set my bios to boot up via usb and it starts to boot. I see the windows bar at the bottom of the screen for a few seconds before it flashes a quick BSOD and instantly reboots before I can read anything. When it reboots it gives me the option to boot normally or to repair. I tried repairing but all that did was add a Windows Vista to my boot options. I don't know what is wrong, any ideas?
  2. TheOutcaste


    Aug 7, 2007
    Windows isn't designed to boot from USB, it doesn't load the USB drivers soon enough. As soon as the BIOS turns the boot process over to the Vista Bootmgr, it can't find the hard drive, as the drivers aren't loaded, so you get a BSOD.

    You'd need to re-install the Hard drive into the laptop, install the sdrivers for the enclosure you are going to use, identify the registry entries for those drivers, then modify the registry so they will be seen as Mass Storage Drivers that load at Boot time.
    Put the drive back into the enclosure.
    Cross fingers
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