Dual boot system with 2 drives?

I once had a dual boot experience, this is my laptop on which I run Linux Ubuntu alongside Windows 7. I use the Ubuntu Bootloader, and therefore mostly load as default in Ubuntu.

Now I'm thinking of equipping my PC with a dual boot, since some modern games don't seem to run under my preferred Win7 system. However, I don't want to fill the 400GB SSD with a second Windows, and instead install the second operating system on a second, smaller SSD.

Can you set up a dual boat from something like that? Would it be possible to set up Win7 to start automatically without input? Or is that excessively complicated by using a second drive?

Can you set up a dual boat from something like that?

Yes, that is possible.

or is it overly complicated by using a second drive?

With two different hard drives is not more complicated than with one. Depending on the operating system, it can even be easier if both systems are installed on separate disks.

Do you want to install Windows twice now or like your notebook once Windows and next to it a derivative from the Linux world?

Windows twice. I don't like Win10 myself, both in terms of design and performance. But for many things it is a prerequisite, including for some modern games. Therefore I would like to have a separate plate for a separate Win10 system that I can use to play certain games that do not work under the Win7 installation.

Since Windows 7 support was completely discontinued earlier this year, I would rather refrain from doing so. At least in relation to your online activities. But only briefly mentioned by the way.

If you want to run Windows 7 and Windows 10 in dual boot, you should first install Windows 7 and then Windows 10. The Windows 10 boot loader then recognizes that another (older) version is already installed and enters it accordingly. You can then select the distribution you want to boot at startup.

I know Win7 is out of date. With the new layout at 10, however, I'm absolutely unable to cope, not to mention what is going on in the background, and the PC components that will certainly not work under 10. I'm a habit person, I prefer everything to be as it is, and it stays that way. Before I replace 7 with 10 and don't really get along with it, I'd rather get both so that I have the choice.

Win7 is installed. So if I install 10, will 10 recognize the 7 and set it as an option? To do this, the 10 disk should be set as the primary boot drive, or not? Would there be a loss of something in terms of boat speed?

I know Win7 is out of date. With the new layout at 10, however, I absolutely can't cope, not to mention

If you know that, it's good and just wanted to have mentioned it briefly. I installed some older systems here. If you know what you're doing there, it's also half as wild.

So if I install 10, will 10 recognize the 7 and set it as an option?

Yes exactly, a newer Windows recognizes the older one and then adds this as a separate entry. You can then choose which OS to start.

Would there be a loss of something in terms of boat speed?

With a dual boot system, there's always this. But now they are not special either and do not notice the "5 seconds" difference. I also use dual and multiboot systems and it doesn't really bother me.