Problem updating rlang because of which i am unable to install tidyr properly

[Sudheeryerra]

package ‘rlang’ successfully unpacked and MD5 sums checked
Warning in install.packages :
cannot remove prior installation of package ‘rlang’
Warning in install.packages :
problem copying C:\Users\user\Documents\R\win-library\3.6\00LOCK\rlang\libs\x64\rlang.dll to C:\Users\user\Documents\R\win-library\3.6\rlang\libs\x64\rlang.dll: Permission denied
Warning in install.packages :
restored ‘rlang’

HOW DO I SOLVE THIS.
I TRIED :
Restarting the session

[andresrcs]

@Sudheeryerra

C:\Users\user\Documents\R\win-library\3.6\rlang

Try manually deleting the folder and then installing rlang