DST log contains previous error(s)

I previously had thought my hard drive had died. Refer to http://www.dellcommunity.com/supportforums/board/message?board.id=insp_harddrive&thread.id=60397 this post. After having taken it into my local computer shop (he checked the drive on another computer) it seems that's not the case. My computer is working again, so far, though I haven't done anything but install the operating system and some antivirus software. What I need to know is, is there anyway that the DST log can be erased? The error is bugging me and I don't want to be working on my computer and have it go down, so I'd like to be reassured that it's in complete working condition again. Is there any other possible way that error could come about in some other way than hard drive failure?