HDD in caddy

Hi!

Sorry my weak english....

I have a laptop (dell 3537). In official version is an 1Tb HDD. I need a SSD. I take the SSD in laptop where the HDD was. Then intsall the windows 10 in UEFI mode / security boot off (only in this mode can i install the windows 10 on SSD). All is OK (the windows run perfect), but when i will the HDD in old DVD drive slot take, then the system dont see there. I see in bios my HDD (in SATA ODD) but i dont see the HDD in windows. What can i make?

thx - Andreas