RStudio Desktop for personal use:
- Install R for your Operating System from a r-project.org mirror site
- Choose the correct "Download R for xxxx" link for your opperating system
- After file is downloaded, open file/run to install.
- Go to RStudio download page
- Scroll down to the "Installers for Supported Platforms" section

- Choose the correct file for your operating system.
- After file is downloaded, open file/run to install.
- Select default install settings.