Event 90

Is it normal to have event 90 informations logged in the system admin logs (NOT the avast logs, they are fine)?

I guess the easiest way to know if its normal is if someone can check their logs and see if they have a lot of information entries under antivirus

Yes, I have a lot of them (like 'Sign of “Win32:Agent-DCI [trj]” has been found in “…\My Downloads\reports\backups.zip\backups\mmsvc32.exe[Embedded#04a00][Upack][Embedded#09288][Upack]” file.)
But these event records have corresponding entries in avast log (section Warning).

no mine are simple short info bits that mention functions etc

Info present too (like ‘The virus database (VPS 080127-1) was automatically updated.’)