Hi James,
Please download the Gen8.1 SPP from below link then extract and run "launch_hpsum.bat" in windows to update all the driver and firmware.
Interactive mode will let you choose which update you want to install.
Automatic mode will update all the driver and firmware to the latest as per the Gen8.1 SPP release.
Note: Its recommended to keep data backup before updating driver and firmware however its not a destructiveprocess.
If you feel this was helpful please click the KUDOS! thumb below!
Regards,
Sudhir