Hm, I don't know if it's a bug or anything, but: 1. I have Windows 8.1 with StartIsBack+ RC4 currently. 2. Today StartIsBack+ prompted to download RC5. 3. It downloaded it, installed it and prompted to restart my PC. 4. I restarted it and StartIsBack+ still says it's using RC4. 5. So I downloaded RC5 manually, installed it, prompted to restart my PC, restarted it. 6. It's still using RC4. Yes, I checked the installation file, it's RC5.