"Partition sector doesn't have the endmark 0xAA55" and locked in the "Quick Search" step

How to use TestDisk to recover lost partition
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Metropolitan
Posts: 1
Joined: 06 Jun 2024, 13:34

"Partition sector doesn't have the endmark 0xAA55" and locked in the "Quick Search" step

#1 Post by Metropolitan »

Hi,

After a power failure, my 480GB SSD lost its partition (Windows 10).

I put the SSD in an external USB enclosure.
But I get stuck using TestDisk
Using Testdisk version 7.2, I get the following display:

Disk \\.\PhysicalDrive7 - 480 GB / 447 GiB - ATA SSD 480GB

->Proceed->Intel->Analyse

Disk \\.\PhysicalDrive7 - 480 GB / 447 GiB - CHS 58369 255 63
Current partition structure:
Partition Start End Size in sectors

Partition sector doesn't have the endmark 0xAA55

-> Quick Search

Disk \\.\PhysicalDrive7 - 480 GB / 447 GiB - CHS 58369 255 63
Analyse cylinder 58369/58368: 100%

HPFS - NTFS 63 221 31 58369 80 63 936677040 [SSD_BOOT]

the partition is detected rather quickly, and immediately afterwards, the “Analyse cylinder” counter goes to 100% but the program remains blocked (USB enclosure activity LED is continously blinking)
The “stop” command is not taken into account !
The “Analyse cylinder” counter shows 58369/58368, so I'm wondering if there isn't a problem (beyond max cylinder amount, and therefore infinite loop?).

Any help or advice ?
Thanks.
recuperation
Posts: 3027
Joined: 04 Jan 2019, 09:48
Location: Hannover, Deutschland (Germany, Allemagne)

Re: "Partition sector doesn't have the endmark 0xAA55" and locked in the "Quick Search" step

#2 Post by recuperation »

Please post your TestDisk log file and the smartmontools log file as well.

viewtopic.php?f=5&t=10910
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