issue for avast emergency update ??

[kollorapoll]

Yesterday I install avast free last version
20.2.2401(Build 20.2.5130.571)
My window7

I can see in task manager
process "avast emergency update" it run for long time I think 3-4 Hour (until I shutdown mycom)
why it not close itself after update complete
in normal ?? 

[Asyn]

Repair Avast:
1. Avast GUI -> Settings -> Troubleshooting
2. Click on 'REPAIR APP'.
3. Follow instructions.
4. Reboot.