Windows 10 Technical Preview Build 9926 January 2015

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  64bit

http://iso.esd.microsoft.com/W9TPI/B6B0A0278A90510669EAB90ABF80B22A/Windows10_TechnicalPreview_x64_EN-US_9926.iso

32bit

http://iso.esd.microsoft.com/W9TPI/B6B0A0278A90510669EAB90ABF80B22A/Windows10_TechnicalPreview_x32_EN-US_9926.iso