Windows : Celeron Dual Core 2.1GHz or higher.* Runs on 32 bit compatibility mode (WOW64) in Windows (64bit).VOCALOID Starter Pack Megpoid English is the bundled set of 'VOCALOID3 Library Megpoid English' and 'VOCALOID4 Editor' you can create full-fledged songs. However we strongly recommend you to use 'VOCALOID Editor' series in order to create full-fledged songs. The simplified application (Tiny VOCALOID3 Editor for Windows) is attached for the purpose of the test operation. The software contains the vocal library that works on the 'VOCALOID6'(Win/Mac), 'VOCALOID5'(Win/Mac), 'VOCALOID Editor' series ('VOCALOID4 Editor'(Win), 'VOCALOID3 Editor'(Win), 'VOCALOID4 Editor for Cubase'(Win/Mac) or 'VOCALOID Editor for Cubase NEO'(Win/Mac).