Because CNet provides free (usually) software it is often bundled with ads and tool bars. As you install it you MUST watch the screens and unselect what you don't want. If you blindly click "Yes" or "Continue" or "OK" as the product is installed, then you get what you get.
This is the terrible disturbance.If software already has installer cnet provide another installer with ads.These ads change homepage and they never can't change. (Babylon homepage can't change at all)

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