ive had this computer for a while and im not sure what to do.back a couple years ago,my house was struck by lightning.which about fried all the electronics.my computers hard drive started acting up after that.years go by and i got it to work and then crash and then work again.Currently i turn it on it goes through scandisk finding errors on some sectors,and the hard drive makes a grinding noise.it then boots to the login screen but when i try and log in it says windows explorer caused illegal operation then i click details and it says invalid page fault.then i click close and it stays on the backround with nothing else.I then have to ctrl-alt-delete to shut it down.I have the system recovery disc somewhere but before i go looking for it,im not sure if system recovery will help.Do you think i should run system recovery or just leave it?