First of all, the list of programs in CCleaners Uninstall window is simply a list of all the programs you have installed on your computer.
You don't have to understand what each of these items actually is, as a lot of them are programs ready shipped with your PC, and definitely don't want uninstalling.
The main purpose of the feature is to enable you to uninstall any third party programs you've installed yourself, and then want rid of. It's there for occassional use,
not to use regularly like the other features of CCleaner.
Can I suggest you read the beginners guide for CCleaner found here.
http://www.ccleanerbeginnersguide.com/The other problems you are having. Freezing etc, could be due to Malware on your PC.
I would suggest posting in the Spyware thread
here, explain the problems you are having, and following the instructions you'll get from a Spyware Moderator.
If it's not a Malware problem, then we'll try something else, but it's important we elliminate that first.
Be patient, and we'll do our best to get your problems sorted out, but don't hesitate to ask any further questions if you feel the need.