Can I Really Make My PC Run Faster, Like it Says on the TV Commercial?

Can downloading a program from the Internet make a slow computer run like new?

Here is what happens when you download and install the software for free: 

• A scan uncovers hundreds, if not thousands of problems.
• To fix the problems, you must get your credit card out and click the link in order to purchase the debugging software.
• After purchasing the software and running another scan, all your problems are fixed.

When running the software on a brand new computer, I would expect few, if any problem. A scan uncovered hundreds of problems. Running software packages I recommend and trust, no errors were uncovered.