“Unallocated” means the partition table has failed. If data recovery is a concern and there’s no backup then I’d recommend contacting a professional data recovery service company.
Thank you. I tried the link, testdisk in ubuntu. When i tried to analyse the disk, i got a bunch of “read err: Input/output error”. I have attached the log file. since the operation was aborted, i’m running it again. Will post the new log if it is any different. testdisk.log.zip (1.8 KB)