Kent

you can also download youtube videos by this:
 
@ the url of the video, no changes only add "ss" after "www. " (without quotations) so it will look like this: ( www.ss )
(limited video format)
 
can download video there via browser or idm.

after the whole cleaning session
 
--> defragmentation of your hdd might accelerate your PC.

You want to speed up of computer then there are steps you have to follow. First of all optimize your pc with CCleaners or remove internet history or temparory file from the computer. Delete unused folder or files from the pc and optimize your speed repair tool