I had Norton Security on Windows 8.1, I never had any issue. I clean installed Windows 10 64-bit. The first thing I installed on Windows 10 was Norton Security 22.5.2.15. I was having issues at Start, Restart and Shutdown. Windows was getting stuck on all of these options. I uninstalled Norton Security completely. I restarted the computer. Then I tried all three options, Start, Restart and Shutdown, there was no delay or issue whatsoever. Windows is not getting stuck now.