Norton Security Vs VirusTotal!

Hi all,
I am using Norton Security 22.8.1.14 in Windows 10.

Background:-
2 days ago I found website virusTotal. I think its very useful.
I check few exe files by that website & surprisingly it shows threat present in those files.
I communicate with Norton customer care by chat option.
Virus removal team take secure connection of my pc. Use VRQ tool, Power Eraser, Full system scan etc. found 0 threats.
I seen VRQ use many apps stored in program files.
I use one of them named Autoruns.
It show lots of internal things. But all check by Virustotal.
Surprisingly 6 files I found infected as per Virustotal.

files:-

  1. c:\program files\common files\wondershare\wondershare helper compact\wshelper.exe
    Antivirus:- ClamAV Threat:- Win.Worm.Runouce-823

  2. c:\windows\system32\drivers\hdaudbus.sys
    Antivirus:- Bkav Threat:- W32.eHeur.Malware09

  3. c:\windows\system32\diagtrack.dll
    Antivirus:- Baidu Threat:- Win32.Trojan.WisdomEyes.16070401.9500.9999

  4. c:\windows\system32\msiexec.exe
    Antivirus:- Baidu Threat:- Win32.Trojan.WisdomEyes.16070401.9500.9984

  5. c:\windows\system32\drivers\ahcache.sys
    Antivirus:- Bkav Threat:- W32.eHeur.Malware11

  6. c:\windows\system32\audiosrv.dll
    Antivirus:- Baidu Threat:- Win32.Trojan.WisdomEyes.16070401.9500.9809

Question:-
1.What should I do when Norton not detect those threats, but Virustotal shows as worms, trojan, virus etc.?
2. Is there any way to remove threats by Norton or submit to them for more investigate?
3. Which is more powerful, Norton by Symantec or Virustotal?

As per Google search I found tools also for remove those, but then what point of spending money on Norton for 3 years.

Thanks,