1. Open ur RYL2NORTHPOLE folder and uninstall it;
2. Delete the "Data" folder and the Login.exe;
3. Turn off ur anti-virus;
4. Restart PC (make sure after restarting, ur anti-virus is still disabled);
5. Run RYL installer and install the RYL;
6. Have fun.
Note = this is what worked for me.. nothing else, hope i helped.