Have a closer look at Tuneup Utilities 2013 here
I have purchased this product and installed on my Windows 7 PC.
My PC used to be very slow and used to take so long even to watch a low quality videos on Youtube etc.
I know that its not due to my Network speed because my other PC streams videos very fast.
So, when I installed this product, it did a complete scan of my bad PC and fixed all the issues.
It does lot of other useful maintenance tasks.
As soon as it completed the maintenance for 1st time, my PC performed like a new one.
I could run my applications so fast.
I could stream even a 1080p HD Youtube video so fast.
On and all I love this product and now my PC is back to its work..
I recommend it…