Have a computer running XP Home and getting several system errors. 57 and 51 have ! in front of them. Has several 57's logged in the same day. Tried running chkdsk /r. 57 error keeps coming back. Computer runs ok. Trying to figure out if the hard drive is starting to fail. Also have 7011 and 10010 with X in front of them. Computer is around 5-6 years old.