I need to remove and re install anaconda

First of all excuse my basic level .

I had anaconda for over a year and now I’m exploring the concept of virtual environment created from the GUI of anaconda navigator.

I the option of jupyter notebook is dimmed out from my virtual environment green launch button, but it’s there in the base.

I was advised to install jupyter on this env from the home page but when I g to home page and choose the virtual env I don’t find jupyter app to install.

And when I try to install the package of jupyter it takes forever and does not complete.
that’s when I decided to remove anaconda and install it again because my class mates don’t experience any of this complications.

But the package of anaconda clean isn’t loading and I really want to know how to remove anaconda completely.