Partition recovery help

How to use TestDisk to recover lost partition
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Joined: 13 Jul 2016, 23:29

Partition recovery help

#1 Post by Zombiehunter99 » 16 Jul 2016, 01:50

Hi everyone, I accidently deleted the partition on my external drive that had backup of my computer. My computer is a 2012, 13 inch (33.02 cm) MacBookPro Laptop. It has Intel Core i7 2.9 GHz 64 bit processor. The partition that I'm trying to recover was formatted as Mac OS Extended (Journaled). The drive had an NTFS partition that held a backup for my Windows 8.1 Desktop (I'm not trying to recover this partition). When I started using TestDisk it showed my list of drives at the "Select a media page and the one that it was trying to recover from had an (R0) next to it (Shown in Attached Screenshot). Should I select the one with or without the (R0)? The Drive Capacity is correct. When I'm at the menu where I it says "Please select the partition table type, press enter when done" do I select the "[Intel/PC]" or "[EFI GPT]" Partition map. I decided to select the "[EFI GPT]" partition map since i'm using a mac (Screenshot Shown at imgur webpage). Then when I pressed the "enter" key and then pressed the "enter" key on the the "[Analyze]" button it said "Bad GPT partition, invalid signature. Trying alternate GPT "( Screenshot Shown at imgur webpage). Does this mean that I need to select "[Intel/PC]" instead of "[EFI GPT]" at the Please select the partition table type" menu. After that I Pressed "enter" on the "Quick search" button (Screenshot Shown at imgur webpage). When the quick search was running I got a several messages, one said "warning: number of heads/cylinder mismatches 255 (NTFS) != 1 (HD)", another said "Warning: number of sectors per track mismatches 63 (NTFS) != 1 (HD)" and another said "MS Data 16384 43804916 43788533" (Screenshot Shown at imgur webpage) (the messages kept repeating themselves). What doe these messages mean? Then after the quick search, When I was In in the select the partition menu I highlighted the Mac HFS partition which said 402 GB / 374 GiB (Shown in the bottom of attached screenshot ) even though I remember the partition being around 300 GB. Is Mac HFS in another name for Mac OS Extended (Journaled)? Could this also be because I selected "[Intel/PC]" ?instead of "[EFI GPT]" ? I then Selected ">[Deeper Search] and when It was finished I found a Bunch of Mac HFS partitions and all with the same amount of data (402 GB and 374 GiB) (Shown in attached screenshot). Is it normal for the Deep search to take Between two and a half days and three? Would putting my computer sleep affect the partition recovery process at all I will attach the most important screenshots on the web forum since I can only upload three of them but you can find all of the screenshots here (In order) : . Do you guys think that I that I can recover the accidently deleted partition? Thanks guys, I hope you can answer my questions.

Edit: I am using TestDisk 7.0
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Screen Shot 2016-07-15 at 3.20.54 PM.png (45.21 KiB) Viewed 316 times

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