Inspiron 13 2-in-1, Windows 10 Home, Bitlocker on?

After I installed Windows 10 Home, my data storage drive (Disk D) was bitlocker encrypted, although I never turned on this function (because this is Windows 10 Home). Why does it automatically turn on and lock up my data partition? I am really annoyed with how Dell or Microsoft works , I'm not sure who it is). I also opened Microsoft Azure to try to find the recovery key but to no avail. I have used data recovery software like iboysoft, minitool power, still cannot scan. Does anyone have a way to solve it for me because the data inside is extremely important to me. I am Vietnamese so my English is a bit bad, using google translate, everyone please understand.