Did you access your account via web browser, like most people? If so, then the version Windows has nothing to do with this. If you thought Windows 8 was significant, please tell us why.
Secondly, you need to access gmail via web browser to delete an account. So, I rather doubt you have actually deleted, or closed, your gmail account. Again, did you normally access it via web browser, or did you set up your gmail account in an email client?