Click on the� Start menu and then go to the� Control Panel
2. Click on� System Maintenance and then� System
3. Choose� Advanced System Settings.
4. Under� System Properties, select Settings� from the Performance section at the top.
5. Click on the Data Execution Prevention tab.
6. Select “Turn on DEP for all programs and services except those I select”.
7. Find the executable file for the application that triggered the error (it could be Client.exe or GameMon.des I don't really know, so choose both..) -You will find it at [C: > Program Files (x86) > NCSoft > BnS > bin]
8. Select the application causing the error and click Open to add it to your DEP Exceptions list.
9. Click� OK to save your new settings.