If the disk is under warranty it may be worth trying to get it replaced. Otherwise just write zeros to all sectors and this will remove all sectors experiencing persistent write errors. Then just periodically run the SMART tests (which should be done anyway) to see if there are any new reallocated sectors or uncorrectable errors.
A small laptop HDD I have experience the same, just a few hundred bad sectors, and since zeroing it hasn't been a problem for years.
A small laptop HDD I have experience the same, just a few hundred bad sectors, and since zeroing it hasn't been a problem for years.