Understanding whether your Windows PC is running a 32-bit or 64-bit version is crucial when installing apps. Many programs offer both 32-bit and 64-bit versions, and selecting the wrong one can ...

It is, though, important to know whether you are running a 64-bit or 32-bit version of Windows when performing certain tasks on your computer.

Will my programs still be compatible? Answer: The short answer is yes. Windows 7 64-bit has backwards compatibility with most 32-bit programs. Just start installing them — they should work fine.

Identifying a 64-bit version of Windiws 8. If you’re running the 32-bit version, you can launch a DOS program by simply selecting the .com file.

If you're not really sure whether you've got a 32-bit or 64-bit OS, we detailed how to find out in our 32-bit vs. 64-bit guide. Share more details on your OS decision—if you chose your version ...

Accessing more memory allows you to run more apps simultaneously without affecting the experience, and you can work with a mix of 64-bit and 32-bit programs.

Many programs offer both 32-bit and 64-bit versions, and selecting the wrong one can lead to installation errors or poor performance.