Windows XP, Vista and Windows 7 are all 64-bit operating systems. Unlike many other programs, Internet Explorer 32-bit with run on a 64-bit operating system without any issues. Also, it is important to realise that as a Windows user, you already have both 32-bit and 64-bit version of Internet Explorer browser installed on your computer/laptop.
Hit the "Start" button if you are using Windows XP. If you are use Vista, click on the Windows logo at the bottom left corner of your screen.
Select "All Programs." You will find a list of shortcuts of programs installed on your computer/laptop.
Scroll up to find the shortcut for "Internet Explorer (32-bit)" browser.
Click on the shortcut to launch a 32-bit Internet Explorer on a 64-bit Windows operating system.
Find the 64-bit version of Internet Explorer on your computer. Click on the Start button and select "All Programs." Look for the shortcut for "Internet Explorer (64-bit)" browser. Although you may not find any difference between the two versions of the browser, according to Microsoft Support, the 64-bit IE performs much better on a 64-bit operating system