Thank you for the reply. I had to go to two Onocologist's and wasn't in the right frame of mind to do anything with the tablet.

I downloaded the last image in the list for the Nexus 7 Tablet [2013] (Wi-Fi) and checked the SHA-256 Sum which was correct.

Where can I find instructions on how to install it to the Nexus 7?

Thank You

@antidroid

I was expecting an email if I received a reply. I didn't realize I needed to change
some defaults to receive it.

Thank you for your reply. I am a total beginner when it comes to changing firmware etc.
I went to the XDA Forums and posted there. The existing posts are a bit over my head
so hopefully I can get an explanation for dummies :-). Unfortunately I am dealing with
health issues which doesn't help a bit.

How can I to uninstall UBports on my Nexus 7 Tablet (2013) and go back to stock Android. I used the Linux easy installer to
put UBports on my Nexus 7 tablet.

This is all new to me so any help would be appreciated.