Hi Tim,
Thank you for writing to Microsoft Community Forums.
I appreciate your interest in Windows 10. Thank you for sharing the details.
Upon checking the details provided by you, and I see that the manufacturer provides drivers only up to Windows 7. For more information, see GA-P55M-UD2(rev. 1.1)
There are some older motherboards, which supports Windows 10. Ideally, you may also require Windows 10 supporting driver and firmware updates from the hardware manufacturer, which currently is not available for your motherboard. However, it would be advisable to upgrade your computer hardware, to avoid any issues that may arise due to compatibility and you may also face performance issues in the future, for smooth running of Windows 10.
Let us know if you need any further assistance, we will be glad to help you.
Regards,
Nikhar Khare
Microsoft Community - Moderator