Windows 7 on External HDD on old pc not working

kawaiiaurora

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May 19, 2015
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Hey,
I have an old PC with a p4s5a/dx+ mobtheboard from ECS.. I installed Windows 7 on a 500GB Verbatim external HDD. On a newer PC it boots but on the old PC, it hangs before getting to the bootmenu or booting, hangs after listing the devices. It's a BIOS crash I think. When the hard disk is formatted via diskpart and blank, it boots past the BIOS with it connected. Any clues?

Thanks,
Aurora ^^
 

kawaiiaurora

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May 19, 2015
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I used wintousb to install it. I checked if it worked by installing it, trying it on the newer PC and them formatting it and reinstalling.
 

USAFRet

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Mar 16, 2013
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It fails on the old P4 machine? Does that have the ability to boot from USB?

But generally, moving a drive with installed OS between machines often does not work. The farther apart the hardware, the less likely it is to work.
 

kawaiiaurora

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May 19, 2015
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It has the ability to boot from USB. Yes, it fails on the p4 PC. It is supported as per minimum system requirements. It doesn't get past the BIOS when the HDD is connected though..
 

USAFRet

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Well, I'd guess that the issue is the total difference between the two PC's.
 

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