See page 142 of your User's Guide. While you're there, you might want to read the whole thing. It has lots of helpful information.
Toshiba Sat. C75D-B7260 Win 10 Home 64 Bit--Toshiba Sat. L775D-S7132 Win 10 Home 64 Bit and Win 10 PRO Insider Preview--Toshiba Sat. L305-S5921 Win Vista SP2 32 Bit--Toshiba Sat. Radius P25W-C2300-4K Win 10 Home 64 Bit