Using 32-bit drivers on a 64-bit operating system

Question

Can I use the 32 bits version of my drivers on a Windows 7 x64 machine?

Answer 1

No, you cannot. You will need to find 64-bit drivers for your devices. From Microsoft's FAQ:

If I'm running a 64-bit version of Windows, do I need 64-bit drivers for my devices?

Yes. All hardware devices need 64-bit drivers to work on a 64-bit version of Windows. Drivers designed for 32-bit versions of Windows don't work on computers running 64-bit versions of Windows.

To learn how to check for drivers, see Update a driver for hardware that isn't working properly or go to the device manufacturer's website. You can also get information about drivers by going to the Windows 7 Upgrade Advisor webpage.