I am a novice and have an Inspiron 1525 that my 4 y.o. son shut down while it was running some programs. I started getting lock-ups and error messages. I then ran diagnostics and found error codes 2000-0142 and 0146. Dell (from India immediately said I need a new hard drive and would send one for two day arrival. I am able to go in under safe mode with networking, as I am right now with no lock ups or problems. I'd like to run chkdsk as the error messges told me to and then attempt to recover back to a recovery point from the day before the shut down occured. I have online backup through carbonite and have backed up all my files to an external drive. Any tips on how to run chkdsk before windows launches or other thoughts? Thanks!