R STudio does not work

Hello,
I would really appreciate help with this problem: When I tried to start RSTudio, it erred out with this message:
RStudio has stopped working
A problem caused the program to stop working correctly. Please close the program.
[Close the program]


It worked in the past.
I've uninstalled R, uninstall RSTudio, reinstalled both several times.

Thank you for your help.

Hello MPhung, Please, attach here screenshots of that error, and also add some comments like
Version of ...
your OS

As a suggestion try to remember the last day working, an image system could help in that way (windows environment)

Capture
R x64 4.0.0
RStudio 1.2.5042

Window 7 is the environment. The last time I used it was June 12 2019, Got back in middle of March this year and found it not working any more.

Much thanks for your help.