R Studio wont start

There is a new update of R studio and R version. after getting them, I installed and start them. However, the R Studio won't start. some reference can be used which
https://support.rstudio.com/hc/en-us/articles/200488508-RStudio-Desktop-Will-Not-Start
There was a confusion between R versions to start. so I decided to unisntall all of them and install the newest. but not work. I also uninstal and reinstal the R studio, also do not worked. then there is also sugested to reset all the setting
https://support.rstudio.com/hc/en-us/articles/200554736-How-To-Uninstall-RStudio-Desktop
https://support.rstudio.com/hc/en-us/articles/200534577-Resetting-RStudio-s-State

the solution that I used is to uninstall all of RStudio and R versions, then delete the folder RStudio-Desktop inside C:\users\username\AppData\Local\

after deleting this folder, reinstalling the R studio and R version , and starting up the RStudio will be not a problem.