AMD radeon R9 295X2 Owner's Manual page 14

8 Hardware and Software Installation
When you install a new graphics card, you must also install the driver and
configuration software the card requires to function properly.
You also need to install (or reinstall) your AMD Radeon drivers when you have
reinstalled or upgraded your operating system or when you download updated
drivers.
The latest drivers are available from AMD's Web site at http://support.amd.com.
Note: When reinstalling drivers, always uninstall any previous drivers that are on
your system, even if they are for the same graphics card. Always start "fresh."
AMD Radeon™ R9 295X2 Graphics © 2014 Advanced Micro Devices, Inc.