Hello forums,

I am a bit stuck in the process of setting up a dual boot and am now questioning whether or not its even possible under my circumstances. So I've been looking up a bunch of different ways on how to dual boot and I'm gonna give the steps that I've taken and where i'm stuck:

1- downloaded windows 10 media creation tool Windows 10
2- ran windows 10 media creation tool and installed it on usb drive
3- used disk manager to shrink my 256gb ssd and make a 30gb partition
4- rebooted computer in order to install windows 10
4.5- ran into some error in which my product was not being accepted (found out this is some sort of bug being fixed apparently)
5- clicked skip on product key page
6- upon clicking on the unallocated partition that i chose to install the os on I am greeted with this error message "Windows cannot be installed on this disk. The selected drive has an MBR partition table. On EFI systems, Windows can only be installed on GPT disks."

So that's pretty much where I'm stuck and I'm not sure how to fix it. I've read that one work around is to reformat the entire drive but that seems like a large hassle since I'm trying to set up a dual boot. Now I have a couple of questions :

-is there a work-around for this that doesn't require me to reformat the entire drive?
-Since i have a copy reserved in the little application on my desktop, will that allow me to set up a dual boot without reformatting(which pretty much means i just wait)?
-Is it even possible to dual boot on the same hard drive since i have heard that upgrading gets rid of your windows 7 product key and gives you a new windows 10 one

PS: sorry for the long post lol and thanks to anyone that can help