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500gb GPT Windows 8 Partion lost

Posted: 06 Jan 2014, 22:05
by fandaz
Hi All,

Would be grateful if any could help me sort out my drive.
Windows 8 was hanging/slow/faulty, removed to backup data on external USB caddie/Windows 7 laptop, Disk Management would not recognise file system and asked if the drive was MBR or GPT.
I chose MBR but the partiton was empty.
Have tried using Partition Recovery software but nothing found as yet.
Test disk on windows 8 machine is scanning at moment but lots of warnings:-

Disk \\.\PhysicalDrive1 - 500 GB / 465 GiB - CHS 7600 255 63
Analyse cylinder 43/7599: 00%


Warning: number of bytes per sector mismatches 512 (NTFS) != 409
MS Data 256 102655 102400 [Recove
Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (H
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (
Warning: number of bytes per sector mismatches 512 (NTFS) != 409
MS Data 6197 6968 771 [Boot]
Warning: number of bytes per sector mismatches 512 (NTFS) != 409
MS Data 256 102656 102400
Warning: number of bytes per sector mismatches 512 (NTFS) != 409
MS Data 212224 117178623 116966400 [Acer]


Am I doing this in the correct manner?

Fandaz