Data on which Windows 7 release you have, just as whether it's 64-bit or 32-bit, is all accessible in the Control Panel in the System applet.
Ozi nke mbipụta Windows 7 ị nwere, nakwa ma ọ bụ 64-bit ma ọ bụ 32-bit, niile dị na Ogwe njikwa na ngwa nchịkọta System.