There are drivers for the following operating systems for E9550:
Windows 10 - 64-Bit Edition
Windows 8.1 - 32-Bit Edition
Windows 8.1 - 64-Bit Edition
Windows 8 - 32-Bit Edition
Windows 8 - 64-Bit Edition
Windows 7 - 32-Bit Edition
Windows 7 - 64-Bit Edition
Linux x86_64
These may be amended (added/removed) based on support given by AMD.