Error with default packages on Rstudio

I have installed the latest versions of R and Rstudio, but for some reason, when i try to use some of the packages that Rstudio includes, such as the package "stats", it loads this error:

Error: package or namespace load failed for ‘stats’ in inDL(x, as.logical(local), as.logical(now), ...):
LoadLibrary failure: Can't find the specified modul.

I would apreciate your help.

What's your OS? How exactly did you install R?