Samsung 850 EVO SSD Cylinder error in TestDisk

[ranjanalva]

HI All,
Yesterday i was installing Win 10 on my laptop with Samsung 850 Evo 500 GB SSD. After selecting the partition system was stuck @ 11% while "copying files" process. Then restarted the process again, Now i cant format or Delete Partition in SSD. I have tried connecting this SSD to Desktop & delete partition, No use. when i access Disk management system get hangs then i have to forcefully restart the system. i have tried testdisk tool in Linux mint also it says cylinder error( for all cylinders). But in Gparted (Linux) app all partition shows but when i try to delete of format, again hangs & after few minutes shows HDD as Unallocated.

HELP..!!

 

[Colif]

ssd don't have cylinders, that is a term better matching hdd which have physical platters. SSD are just memory.

Disks were/are a stack of “platters”, and the platters had/have multiple sides. On a PC HDD there mught have been 2. There could be typically 9 on midrange/mainframes. Data is written to “tracks” on the sides of the platters, both sides. Sometimes one side of one platter was not used. If data is written to a single track, the head does not have to move to read/write the data. A cylinder is the vertical column of all tracks read by a set of heads moving together.

Someone will post an answer with pictures I am sure. Many operating systems address chunks of data by CHS, (C)ylinder, (H)ead, (S)ector. You may want to look up LBA (large block addressing).

https://www.quora.com/What-is-a-cylinder-in-disk-partitioning

what motherboard do you have? Some of them now have tools onboard that allow them to format ssd

have you tried to boot off installer to repair and run diskpart in command prompt?

boot from installer
on screen after languages, choose repair this pc, not install.
choose troubleshoot
choose advanced
choose command prompt
type diskpart and press enter
type list disk and press enter
this shows all drives available, DVD/USB and hdd, make note of ssd number
type Select disk X - where X is the number of the ssd you want to wipe, change X to that number and press enter
once the drive you want to install on is chosen, type Clean