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Windows 7: Windows 7 does not boot when its hard drive is connected externally

22 Aug 2013   #1

Windows 7 Home Premium 64 bit
Windows 7 does not boot when its hard drive is connected externally


I removed my hard drive containing Windows 7 from my computer, where it boots properly. I placed the drive in an enclosure and connected it via USB. It refused to boot, instead flashing a blue screen for less than a second and then asking if I wanted to attempt system repair.

Upon returning the hard drive to the inside of the computer it works correctly as before.

I regularly boot various Linux operating systems with hard drives connected internally or externally on this computer, so I believe that my BIOS settings are correct and that there is not a problem with the hardware.

Does anyone know why Windows refuses to boot unless it is connected internally?

Thank you for any help or advice.

My System SpecsSystem Spec
22 Aug 2013   #2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64

Windows doesn't boot via usb natively. It is possible to fiddle with it to get it to work. Not sure of the point.
My System SpecsSystem Spec

 Windows 7 does not boot when its hard drive is connected externally

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