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If you are not using a 64-bit Operating System, your browser is not 64-bit. You can check if your Operating System is 64-bit by right-clicking "Computer" (or "My Computer") and choosing "properties". If under "basic information" or under the "General" tab it says 64-bit, you are using a 64-bit Operating System. Otherwise, you are not.
If you are using a 64-bit Operating System, you may be running a 32-bit browser or a 64-bit browser.
To check this:
1. Open Task Manager by right-clicking the task bar and choosing "Task Manager".
2. Click "Processes"
3. Find the browser process and see if there's a "*32" next to it. If there is, it is the 32-bit version of the browser. Otherwise it is the 64-bit version.
In this picture we can see both Internet Explorer 64-bit and under it the 32-bit processes:
4. Browser processes include:
- iexplore.exe (Internet Explorer)
- firefox.exe (Mozilla Firefox)
- chrome.exe (Google Chrome)
5. To find the 32-bit version of your browser, look for its folder under C:\program files(86x)
(For example, "c:\program files (86x)\Internet Explorer" will contain the 32-bit version of Internet Explorer)
