Windows 8.1 is not officially supported yet at this time. You can run the program by doing the following:
In Windows 8.1
In Windows 8.1
- Open the 'Start' menu and select 'Desktop'
- Open a file browser.
- Navigate to 'Computer' in the file browser and open the folder 'C:\Revolution\R-Enterprise-6.2.1\IDE64 and double-click on the file 'RevoIDE.exe'.