Windows 7 installed and seems to be running OK but with an ominous warning that my hard drive is about to fail. I run the western digital diagnostic software and get "status code= 04 (unkown failed test element) and failure checkpoint= 96 (unkown test)I run the Dell diagnostics at boot up, the "Dell Pre-Boot System Assessment Build 4106" and get error code 0146 error code 2000-0146I am at my wits end here, what is wrong and how do i fix it?