how to use drivercleaner.net safely ??? hi all, i just download drivercleaner.net from sapphire free promotions.. i'm new with drivercleaner.net (never use) i want ask : 1. i chose nvidia in cleaning section, i tick the advance cleaning, then after scan, why appear result, whereas i use ati not nvidia vga & in mobo no nvidia chipset? this result 100% true not fail? 2. the scan result appear 4 tab : type, data, filter, and the last tab blank? what name for last tab, below that tab appear number, 1 ,2 or 3.. 3. after scan result : appear file c:\windows\inf\..... c:\windows\system32\.... appear registry HKEY_LOCAL_MACHINE\SYSTEM\.... appear directory c:\ati\... and many.. it is safe if i delete all the file, directory, registry? 4. if i scan all cleaning section, from A to Z then i delete all the scan result file,folder,registry.. it is 100% safe? or must choose ? example : maybe intel result 100% safe to delete the file folder & registry, but if ATI result, must choose some file to delete, some file to keep ? like that? after delete 100% guarantee in future not need that file, registry, folder? and not make crash, hang or error ? 5. after clean all that stuff can make pc more fast or make what? my spec, (if needed) i7-860 Gigabyte GA-P55A-UD3P Toxic 5850 G,skill Ripjaw 4GB Win 7 32bit thank you very much..