If I understand you're issue, you are concerned because you can see files and folders you haven't seen before.
Many of the files and folders in your user profile folder and around your computer are hidden for a pretty good reason. To keep users who really don't know what they are doing from accessing them and modifying files and messing up their programs or program data.
If you'd like to not see these folders any more you can turn off the display of hidden files and folders by doing the following:
1. Press Alt-T in the Windows Explorer window (not internet explorer), then clicking "Folder Options".
2. Click the "View" tab.
3. Under "Hidden files and folders" click "Do not show hidden files and folders".
4. While you're in here you can turn on the hiding of file extentions and protected operating system files as well if you like.
5. Click "OK".
Now you can sleep content that your computer won't show you it's internal workings.
Hope this helps.