Question what should i do with three hard drives in my msi laptop?

Feb 18, 2020
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in my laptop i have one 1TB HDD and two 128 SSDs and i have windows installed in one of the SSDs, and i want to make RAID 0 using the two 128 SSDs to speed operations, MY PROBLEM is where should i install windows after i format everything because i can't make RAID 0 having the windows in the SSD without formatting! so i want you to tell me which is better? install windows on the RAID for the speed or install it on the 1TB HDD for more space?
and also will I face any problems installing and working with windows on RAID 0?