Hi,
Some useful info about system requirements & other for NS, NSBU so here you go:
https://support.norton.com/sp/en/us/norton-security/current/solutions/v101390880_EndUserProfile_en_us
&
https://support.norton.com/sp/en/us/norton-security/current/solutions/v101390850_EndUserProfile_en_us
&
https://support.norton.com/sp/en/us/norton-security/current/solutions/v101534062_EndUserProfile_en_us
Regards,