I can use WAS on my Win7 computer as long as I use the onboard sound card; if I try to use the USB external M-Audio FastTrack Pro, it doesn't work, and I have to use ASIO instead. So it really depends on the audio device you are using, but it does work on Windows 7, 8, and 10. I don't think Windows 7 originally had it, but as long as you are up to date with the latest patches, it should be there.


John

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Desktop-ASUS-I7 Win10Pro 32GB 2x1.5TB, 2x2TB, 1x4TB SATA

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