Installing packages in Rstudio

You have to change the permissions of the given folder (assuming you have permission to do so):

• goes to the folder in question
• Right-click the icon of the
• Choose "Properties"
• Security tab
• "Users" group
• Click on "Edit"
• Select all the boxes that are not selected to allow corresponding actions

In principle this will solve the problem.

Alternatively try running RStudio as an administrator (although the first solution is the most desirable).