hello. can anyone help with this prob i am having: when i power on my desktop, i get a black screen. then i have to use the "cntrl - alt - del" method to re-start , then it brings me to a screen that reads "windows failed to start because of a recent hardware or software change.......... blah , blah , blah, then it says to fix the problem, i must "repair windows" with the boot disk , or i have the "repair windows" option already in my computer. well, i was on the phone with my "tech" guy for 2 hours and we both found out that i have neither!!! he recommended that i use "CCleaner" because it might be a start-up file problem. so, my question is, how do i set "CCleaner" to find and fix the problem?? by the way, after 2-3 tries on booting the system, after that it works beautifully all day!! it's just the 1st boot-up of the day that i have trouble with. my computer specs are: Rapter Desktop PC w/ Vista Home Premium 64-bit 6GB of RAM Intel E8600 Dual Core CPU 3.33GHZ Processor NVIDIA GTX 280 Video Card with 1GB of RAM thanks!!!