Cool!
Depending on how desperate you are to avoid setting up an account (and how adventurous you are), you can try using another IDE.
MonoDevelop is free and open source and no registration is needed.
VSCode is another free and open source and no registration is needed, but you might need to work harder to make it work there (as it's general purpose, not c# specific like MonoDevelop, so you'll need to install a bunch of plugins and configure stuff).
Eventually I'll get to try those out myself (I have used MonoDevelop on Linux, actually, but did not try on Windows) and probably add a small tutorial for setting those up (if needed).
Depending on how desperate you are to avoid setting up an account (and how adventurous you are), you can try using another IDE.
MonoDevelop is free and open source and no registration is needed.
VSCode is another free and open source and no registration is needed, but you might need to work harder to make it work there (as it's general purpose, not c# specific like MonoDevelop, so you'll need to install a bunch of plugins and configure stuff).
Eventually I'll get to try those out myself (I have used MonoDevelop on Linux, actually, but did not try on Windows) and probably add a small tutorial for setting those up (if needed).