My comp is extremely slow and often crashes my browser (safari). I have tired to upload ccleaner and windows security says there may be a harmful attachment and stops the upload ?

My iPod will not show up on my computer. I guess my computer doesn’t have any installed USB drives. Please help me find a Website where I can download the drives for FREE! Not just the Scan..Thanks!

I bought my computer from a friend of a friend about 3 months ago. It’s a Toshiba with Windows Vista. I felt that it wasn’t running quickly enough so I did a quick scan which turned up lots of hits for not so legal cites (porn, illegal downloads, etc) how do I clean my computer so that it runs at full speed and doesn’t give my the "you have a security problem" message? is there any way to do it for free?