Back
Before uninstalling your R and RStudio, you have to make sure that you have to delete every sub-folder that falls under the following folders called R, RStudio, or RStudio-Desktop. Then uninstall R and RStudio and then again install your RStudio and R. I think that will work for you.
If you want to know more about R Programming then do check out the link.
31k questions
32.8k answers
501 comments
693 users