How to restore hdd with a bunch of bads?

Question

Software and Internet Services

The bottom line is that there is a hard drive from a laptop (Hitachi, 320 GB), with a bunch of bads, most likely mechanical damage as a result of careless operation of the laptop (there is already a new hdd in the laptop, explanatory work will be carried out with its owner).
In general, I would like to use this HDD in the economy by remapping it into a more or less working HDD of 80-200GB, the first 10 gigabytes are most prone to problems, however, the bads are clearly found throughout the rest of the surface, while randomly, however, despite this, most of the data was read and everything important from the disk was copied.
Now the partition table is empty, it is necessary to carry out the above machinations, for a start I wanted to do this using MHDD, but when he saw the first bad, he either tried to remap it, but given the number of bads, as I understand it, you can wait until the end of summer for the remap to complete, is there faster ways?
Questions about profitability are not considered, I'm not interested in going and buying an hdd (and there is no free money), I'm only interested in the possibilities of restoring it.

Answer 1

You can't just take and remap 120Gb. Sectors are taken not from free space, but from a reserve area, which is not directly accessible and has a small size.
Mechanical damage will only worsen the situation over time - dust particles will destroy the surface more and more.
But there is a temporary solution - find all continuous areas without errors, cut off a couple of hundred megabytes from them from the ends, create sections in this area and merge them into one. It will work for a while, but then it will finally die.

Answer 2

There is a suspicion that the bads climbed after the remap was exhausted, the conclusion is appropriate. Look in the direction of file systems that support lists of bads, but I think they will not be FAT / NTFS.