After adding the SSD, Win installation on it, can't see the old HDD

Hello, I bought an SSD for the system, connected it, disconnected the HDD and installed the system on the SSD. Soon the HDD had a system and I formatted the partition with it, leaving other data on other partitions. After installing Windows on SSD, I connected the HDD to it, it is to serve as an additional storage for data. However, the system (In Disk Management also does not) can not see the HDD, only SSD. Both SSD and HDD discs are visible in the bios. I will say right away that I can't format the HDD in full because I have important data on it. How to make the disk visible to Windows?

Added after 19 [minutes]:

Help me set this order:



In this order, works, sees the HDD, is it correct?

If it works and sees the disk, what's the problem?

I also had it after installing the system on SSD, the old disk, despite the fact that I formatted it, the laptop did not see it, it worked normally on other laptops. I found somewhere help what to do but at the moment I can't find it. Maybe this guide will help https://www.pcworld.pl/porada/Twardy-dysk-Jak...rzenie-nowego-zewnetrznego-napedu,378722.html

zbyszek100 wrote:

However, the system (In Disk Management also does not) see the HDD

And in the device manager is it?