I am currently running Win 7 sp1 home premium. The OS is installed on a SSD. I also have 4 WD 1 TB HDD configured in 2 arrays using Raid 0. I can not afford to lose any Data on the HDD's. I don't have the capacity anywhere else to back up the data on the arrays. Is it possible reconfigure these arrays on a new window 8.1 install? If so how? Please don't be vague I need help! I am looking to get ready for the Windows 10 upgrade.

The PC is a home built AMD 2.9 GHz Processor with a Gigabyte MA78LM-S2H MB
I have 1 raid pair setup on SATA2 and 3
The 2nd is connected to PC1 2 port SATA controller