Discussion Weird situation with windows 10 installation

[Alimao]

I recently bought an ssd, and naturally I was going format and install windows on it. Ok, did it, but when I was going to select it to boot, it said there was no OS in that device, when I selected the hdd again it booted, but with the speed of an ssd. When I saw the file explorer, the C drive is the ssd. When I opened disk manager, I noticed the partition system efi was still on the hard drive. When I strees the hdd the system doesn't suffer (unlike before the upgrade), I think it's because the page file.
I would like to know what's happening and if I can just move it to the ssd without having to format everything.

 

[rgd1101]

this is not weird. it happened because when you install windows to the ssd, you have the hdd connected, too
should have disconnect all other disk.
if you haven't done much after windows install. do it again, this time with the hdd disconnect