There are dozens of free operating systems based on linux that will run on a Windows delivered computer. Ubuntu, Linux lite, OpenSuse ect.
Windows is simply code, and most people do not realize any code will run on any computer. No one really has to pay for an OS in their rig but strangely enough most feel these free systems cannot be as good or safe as Windows, when the reality is they were developed to be safer/faster/more secure, and more reliable.
I have run a dual boot rig for decades. Meaning I run Windows for daily use, and Suse for my business. A lot of you may remember all the posts on my computers constantly crashing Windows... Suse has never crashed, and I still have customer invoices/personal tax records from 2005.
Just saying, there are options.