Question about McAfee Subscription.

I've a Dell XPS Laptop with pre installed McAfee antivirus and my Subscription has already expired (it was about 1 year).

(Due to some software problems with my Windows PC i have the options to 'refresh' the system or 'Restore' it to a previous backup.)

I want to Ask three Questions :

1.If i Try to Refresh the Windows, will McAfee be removed from My PC?

2.I have intention to renew my McAfee Subscription but first i want to uninstall this antivirus for a reason.

If I will uninstall McAfee,will i automatically lose the Special McAfee Renewal Discount for Dell Users?

3. In both cases, can i reinstall the antivirus in some way, even if McAfee has expired and it is removed from my Dell Laptop?

Thank you for your answer!