I gather from what you would like to delete the Babylon Search Engine. If that is so,
1. Click on 'Start' button. (Bottom left of screen)
2. A menu should appear. Click on 'Control Panel'.
3. Should be another screen. Click on 'Programs and Features'.
4. Should now have a screen with a list of programs. Scroll down to 'Babylon Search Engine'. Click on it to highlight it. You should now get some options including 'uninstall'
5 Click on 'Uninstall', and that should happen automatically.
To reset your Google start page, open a new tab. Then search for 'Google start page'.
Click on best link to take you to the Google page.
When I just tried it, there was a short questionnaire to fill in to set preferences.
With this page open, click on 'Tools' in the menu at the top of the screen.
Click on 'Options'.
A new page should open. Click on 'General' tab.
Another page should open with place marked 'Home Page'
Copy and paste the link for your Google page into this place.
Finish by clicking the 'OK' button on that page to set your change of page.
If you need more info or clearer instructions, just ask.