Did'nt know where else to ask this, since there's no separate page for NR 2003. A few weeks ago, my NR 2003 exe files stopped working. I get a Windows error message saying no permission to allow?this, can't find. So I opened the DEP & instead of turning it off , I excluded the NR 2003 exe files. Restarted the PC, still don't work. I already had all my older games set to run as administrator & compatibility mode to Windows 7, which is what I have. I have the NR 2003 games & others backed up on an external hard drive, nr2003 won't work on the external hard drive either. I'm far, far from PC expert, but my best guess is, it might be a Windows update causing the problem. I'm hoping some of the computer/game on experts here might have some ideas. I updated Java. I was thinking of either trying to turn back the PC to an earlier date or maybe uninstall the most recent Windows updates, especially the security updates. Any help would be sure appreciated.!!!!!