Problem on installing Package on R

[Pradeep.R]

While I am trying to install package on Rstudio, it show me warming message like
Warning in install.packages :
'lib = "C:/Program Files/R/R-4.0.2/library"' is not writable
Warning in install.packages :
cannot create dir 'C:\Users\Pradeep\Documents\R', reason 'No such file or directory'
Error in install.packages : unable to create ‘C:/Users/Pradeep/Documents/R/win-library/4.0’.
With multiple effort I am unable to solve it.

Please help me to solve the problem.

[nirgrahamuk]

@Pradeep.R

C:/Program Files/R/R-4.0.2/library

Perhaps there's something with the permissions set in the folder.
is it in fact writeable ? can you use your windows explorer to browse to C:/Program Files/R/R-4.0.2/library and create a new folder within it, or drop a text file in there ?

[andresrcs]

@Pradeep.R

Warning in install.packages :
'lib = "C:/Program Files/R/R-4.0.2/library"' is not writable

You need to run Rstudio as "administrator" to be able to install on this folder.