Install Win 10 on MBR disk

[Belzi]

Hi, I have 2 partitions on my main HDD - one (200gb) for Os and next one (800gb) for files (photos, videos...). I cant transform my disk to GPT, because I have about 500gb files on disk and can't store it somewhere. Is possible to install it?
Btw. I have 80gb SSD used as cache, too, but can't install it here, because this disl is showing like just 10gb on disk select step.

 

[RealBeast]

Before doing anything back up your data.

And yes you can install Windows 8 or 10 to an MBR disk in legacy mode, but UEFI requires GPT.

You also can convert an MBR disk to GPT without data loss, see HERE, but unless you are good at such things I would not suggest it (and would back up all data first in any case).