Cant boot old drive after adding new drive












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I have an HP EliteDesk 800 with a 500G drive on SATA-0. I added a 1TB drive on SATA-1. The 1TB drive came from a Window 8 machine where it was the primary drive. After the new drive was added the machine insists on booting the new 1TB drive. I can boot the old 500G drive using the boot menu but I cannot make it the default (not in the boot order list). I formatted the new drive but it still tries to boot (and now fails). What am I missing? Thanks in advance.










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  • 1





    You might need to switch the disk connectors.

    – harrymc
    Jan 24 at 21:01











  • Doubtful the old W8 install will boot on different hardware.

    – Moab
    Jan 24 at 23:56
















0















I have an HP EliteDesk 800 with a 500G drive on SATA-0. I added a 1TB drive on SATA-1. The 1TB drive came from a Window 8 machine where it was the primary drive. After the new drive was added the machine insists on booting the new 1TB drive. I can boot the old 500G drive using the boot menu but I cannot make it the default (not in the boot order list). I formatted the new drive but it still tries to boot (and now fails). What am I missing? Thanks in advance.










share|improve this question


















  • 1





    You might need to switch the disk connectors.

    – harrymc
    Jan 24 at 21:01











  • Doubtful the old W8 install will boot on different hardware.

    – Moab
    Jan 24 at 23:56














0












0








0








I have an HP EliteDesk 800 with a 500G drive on SATA-0. I added a 1TB drive on SATA-1. The 1TB drive came from a Window 8 machine where it was the primary drive. After the new drive was added the machine insists on booting the new 1TB drive. I can boot the old 500G drive using the boot menu but I cannot make it the default (not in the boot order list). I formatted the new drive but it still tries to boot (and now fails). What am I missing? Thanks in advance.










share|improve this question














I have an HP EliteDesk 800 with a 500G drive on SATA-0. I added a 1TB drive on SATA-1. The 1TB drive came from a Window 8 machine where it was the primary drive. After the new drive was added the machine insists on booting the new 1TB drive. I can boot the old 500G drive using the boot menu but I cannot make it the default (not in the boot order list). I formatted the new drive but it still tries to boot (and now fails). What am I missing? Thanks in advance.







windows-10 hard-drive boot sata






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asked Jan 24 at 20:56









PetePete

101




101








  • 1





    You might need to switch the disk connectors.

    – harrymc
    Jan 24 at 21:01











  • Doubtful the old W8 install will boot on different hardware.

    – Moab
    Jan 24 at 23:56














  • 1





    You might need to switch the disk connectors.

    – harrymc
    Jan 24 at 21:01











  • Doubtful the old W8 install will boot on different hardware.

    – Moab
    Jan 24 at 23:56








1




1





You might need to switch the disk connectors.

– harrymc
Jan 24 at 21:01





You might need to switch the disk connectors.

– harrymc
Jan 24 at 21:01













Doubtful the old W8 install will boot on different hardware.

– Moab
Jan 24 at 23:56





Doubtful the old W8 install will boot on different hardware.

– Moab
Jan 24 at 23:56










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