NSS Requests Prevent Sleep

I have NSS 21.2.0.38 installed. My computer often will not go to sleep. In these cases, "powercfg -requests" returns the following information. How do I stop NSS from making these requests that prevent the computer from sleeping?

 

Thanks,

Bob

 

C:\Windows\system32>powercfg -requests
DISPLAY:
None.

SYSTEM:
[SERVICE] \Device\HarddiskVolume1\Program Files (x86)\Norton Security Suite\Engine\21.2.0.38\n360.exe (N360)
[SERVICE] \Device\HarddiskVolume1\Windows\System32\svchost.exe (CryptSvc)

AWAYMODE:
None.