HELP PLEASE PLEASE HELP

I want to uninstall avast on my PC with recycle because it wants to install its apps on my PC and it worries me that my C Drive is gonna fill up and i think it has adware with it and i don’t want it to swap my Windows 10 PC with a PC Avast Version. Will it i’m scared to death i’m shaking. I can’t uninstall it with recycle bin because of it’s permissions Btw i got the premium version

Avast has safeguards in place to prevent unauthorised tampering and uninstallation.
To uninstall Avast you need to use the Avast unistaller program that can be downloaded from Avast website here:
https://www.avast.com/uninstall-utility

Download avastclear.exe and follow the instructions on that webpage how to use it.