Found this scrounging around the net last night. Looks mighty useful.

"Allow me to build tension by prefacing the end-all/be-all solution with my background: Having worked for the now-incorporated Geek Squad branch of Best Buy Corporation for the better part of eight months, I have seen dozens upon dozens of systems come through our department with any one of these errors, brought in by customers who are afraid they did something, have a virus, or are in jeopardy of losing their data. Prior to my discovery of an invaluable sequence of commands, our standard procedure was to hook the afflicted drive to an external enclosure, back up a customerís data and then restore the PC with the customerís restore discs or an identical copy of Windows with the customerís OEM license key. If the customer wasnít keen on the applicable charges for the data backup, we informed them of the potential risks for a Windows repair installation (Letís face it, they donít always work right), had them sign a waiver, and we did our best.

Neither of these procedures are cheap in the realm of commercial PC repair, nor do they inspire a tremendous level of confidence in the technician or the hopeful client.

In an effort to expedite our repair time and retain the sanity of myself and other technicians, I received permission to undertake a case study on a variety of PCs currently in service that exhibited any of the aforementioned symptoms, and I took it upon myself to find a better solution. After crawling through the MSKB, Experts Exchange, MSDN and sundry websites all extolling the virtues of a solution to these problems, I only found one that worked, and it has been reliably serving me for the better part of two weeks on seventeen PCs to date."

Not quite the Holy Grail, but close.