Hi!

I have an external hard drive that I took from an old Acer Laptop. I didn't format it because I wanted only to save my data before installing in my pc a new SSD.
The problem begin an year ago when I would try to boot the pc from that external drive, because it was in stuck. Nothing worked and when I take and try to visualize a new time the disk as external drive, I see that a part of the memory was "invisible". I didn't touch the drive for a long period. Few days ago I took the hard drive and, because I was sure that nothing of important was on the drive (I miss nothing during this year) and i begin to "cut" and "paste" form the external drive to a new one, in order to see how much was the loss of data. Just doing that I saw that with Disk Analyser is possible to see the corrupted files and so I stopped to cut and I tried to recover that particular folders.
I tried with: g-parted(formatting the system partitions), TestDisk (Boot Sector repair), ntfss-3g and foremost, but without getting a result. I tried to open the disk with Easus Partition Master from FalconFour's Boot CD but it visualized the disk as unique GPT partition.
I understood that there are some badblocks in the HDD: what could I do to recover data from them and then fix them in order to use a new time the disk?

Thanks a lot
[please tell me kindly if I'm not respecting some forum (or grammatical :P) rule]

Andrea

So already a year ago you were having data loss on that disk? It hardly got any better.

Also, formatting a partition deletes the data stored on it (well, mostly - it might still be possible to go low-level recovery with e.g. testdisk/photorec).

A disk with bad blocks nowadays has passed its lifetime and is a target to be replaced and thrown away. All data IN the bad blocks is lost.