ASIO4ALL as Standart for Windows 7

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I own a Computer with Windows 7 Home Premium (64 Bit). I use Asio to get Latency-Free Sound from Ableton Live (Novation Launchpad). But as long Ableton is open, every other Sound is disabled. Is there any Way to set ASIO4ALL as the Standart Windows Sound Driver, so that every Device and Program will work with it (not just Ableton)? Thx for you Answers,
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