What processor and chipset do you have?
My understanding is that Windows 10 DOES NOT support:
- Processors older than 3rd generation Intel Core.
- Chipsets older than the 7 Series.
- Intel Rapid Storage Technology (RST, which replaced Intel Matrix Storage Manager) on chipsets older than the 8 Series -- which means that, obviously, Intel Matrix Storage Manager is not supported at all.
When you upgraded to Windows 10, the Windows-based driver and runtime software were removed/disabled and no replacement was provided (because there is none). The hardware-based operation of the existing array will continue to work, but you cannot make any changes to the configuration or monitor it from Windows 10. I thought that you could continue to make changes from the BIOS Setup Option ROM. It would seem, however, that rebuilds done in the O/S environment are not possible (because driver/software is not working).