Detect 64-bit or 32-bit Windows from User Agent or Javascript?
Try this, looks for WOW64 (32-bit on 64-bit) or Win64 (native 64-bit) in the user-agent string. if (navigator.userAgent.indexOf(“WOW64”) != -1 || navigator.userAgent.indexOf(“Win64”) != -1 ){ alert(“This is a 64 bit OS”); } else { alert(“Not a 64 bit OS”); }