Make your pc fast, quick scan, registry scan, block unwanted urls.Make your pc fast and reliable, scan your registry to fix your pc to get optimum speed. Take backup of your computer and make perfect restore points. optimize your service and startup.
512 mb ram, 1.2 ghz processor 12 mb hard disk requirement space.
This will scan and will find the errors and junk on the computer but will not delete untill activated.