Simple and sweet:
Download and install HDSentinel Standard
http://www.hdsentinel.com/
When you run the program, it will instantly give you information about your disk(s):
Don't mind the Finnish language!
If you disk health percentage is anything but 100%, there is something wrong with it. Usually this means weak or bad sectors in your hard disk. You can live with these if the system is otherwise fine (instantly backup your precious data though!!) but if there are Windows operating system files on the weak/bad sectors, it will cause system instability.
Download and install HDSentinel Standard
http://www.hdsentinel.com/
When you run the program, it will instantly give you information about your disk(s):
Don't mind the Finnish language!
If you disk health percentage is anything but 100%, there is something wrong with it. Usually this means weak or bad sectors in your hard disk. You can live with these if the system is otherwise fine (instantly backup your precious data though!!) but if there are Windows operating system files on the weak/bad sectors, it will cause system instability.