My 18 month old Toshiba lappy has now twice this week gone into that screen on boot where it automatically runs a three-step process (which includes CHKDSK) to "verify disk integrity). I have had this happen on HDs before that were on the way out, but this is still a pretty new computer. Am I approaching hosedom, or is this just nothing? I have a screenshot attached, if that helps. It seems like there is a chance this comes from running the registry cleaning function of CCleaner prior to rebooting, but I am not positive. Thanking you in advance for your insight.