Hello Brian,
Hope you are doing well.
I am using the same version IDE and SDK as you mention and the EVKB board on Windows 10 without any issue. When creating an example project from the SDK you may note that the BOARD_Flash has a driver, this is needed in order for it to work correctly. If you are working on a custom board or decide to use a different flash there is a generic driver provided from the drop-down menu.

Could you please check if your project has the driver included?You may also find this configuration by right clicking your project -> Properties -> C/C++ Build -> MCU Settings.
Best Regards,
Sabina
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