<A target="_blank" href="http://www.pcworld.com/businesscenter/blogs/bizfeed/169823/windows_7_bug_is_no_showstopper.html?tk=rss_news">When is a bug not a bug?</A> The "problem" associated with ChkDsk is related to the memory leak "problem" and can cause a system to crash. Apparently the /R switch is supposed to hog all available resources so it can repair the disk in a timely manner.