The R console is in my native language, how can I set R to English?
On a fresh install, adding language = en to the Rconsole file (which exists by default under R_HOME\etc) will make R's language English in the R console as well as RStudio. This can be overridden by code in the working directory and RStudio's individual projects.
First, go to the etc folder under R program files folder. Then locate Rconsole file. Find the line language =, change it to language = en if you want to run R in English.
Note: right click on the Rconsole file icon, select Property and grant yourself the permission to modify the file.