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How to recover drives from unallocated volume?


New Member
HELP. Just made Recovery Drive by creating a small partition drive (50 Gb) on an external USB HD (500 Gb). It all seemed to go well after a copy of the Recovery Drive was made. I had two other partition drives containing important files on the same USB HD and they were still being recognized and accessible. I then did a recovery copy of the drivers and applications to Recovery Drive and suddenly the two other partitions disappeared. I can only see the Recovery Drive and unallocated volume on the USB HD. Can someone help me to find how to recover the missing partition drives from a large unallocated volume? What did I do wrong?

OS. Windows 8.1

Thanks so much for your help.

My Computer

System One

  • OS
    windows 8.1