I have a hard drive that was formatted within Vista 64-bit, SP1 which I have now installed in a 2nd computer running Windows XP Pro SP3. This data hard drive is recognised in BIOS, and in Control Panel > Administrative Tools > Computer Management, but not in Windows Explorer. Curiously, the drive in question shows with no drive letter in Computer Management (it was P when it was originally in Vista). Computer Management also describes the drive, under 'Status', as GPT Protective Partition, which I've never seen before.
Is there a way to proceed that enables the use of the drive in XP and keeps all my data intact?