open anaconda prompt

conda create -n tensorflowx2 python=3.8

note that tensorflowx2 can be change, its a name. 3.8 ⇒ version

Proceed ([y]/n)? y

choose y

conda activate tensorflowx2 

if (name) C:\dirctory means success.

Method 2:

go to anaconda navigator → enviroment

choose create on the bottom left:

change name& version