It could very well be hard drive problem.
Connect it to a working system if you can & check for errors. Right-click the drive > select Properties > Tools > Click 'Check now...' under Error-checking, put a tick in both boxes & click on 'Start'.
Also use a 3rd-party tool like HD Tune click here (the free version) to check for & view any bad sectors. Do NOT opt for a Quick Scan when running the error scan. G