You can use a specialized utility to Data Recovery from a damaged hard drive. Advanced Disk Recovery is one such utility that can fix all kinds of Data Recovery loss issues. It helps restore in a variety of situations, so if the drive is still accessible, you can try using Advanced Disk Recovery.
While recovering files, make sure you do not select the same location to Data Recovery files from where the files were deleted in the first place, as this may result in the read and write operation and you may not be able to recover the file again.
Another reason why your hard drive may be corrupted may be because it does not have a valid signature. It is for the same reason that you might see an uninitialized state.
First, connect your hard drive to a working computer. You can refer to the steps mentioned above where we have to recommend to connect the hard drive to a working computer.
We would like to re-establish again that if you want to recover Wikipedia data from damaged hard drive, first know how much damage is done. In the event that the damage is beyond your comprehension or there is data you need, seek professional help immediately.
Disk recovery software like Advanced Disk Recovery can be your next bet, if you can at least access the hard drive using another working computer. If you have been in such a situation, what action did you take, let us know in the comments section below.