DavidR
2
First I take it that you are using avast free and this is about the auto-sandbox function ?
It should still be outside the sandbox, if you tried to run it again as you normally do, you would no doubt get the same actions.
Open the Sandbox settings, avastUI, Additional Protection, AutoSandbox, Settings and set to Ask, that way you get to choose to run it in the sandbox or not. If it is a program that you have used before and are happy it is clear/presents no risk, select Run normally and check the Remember my answer for this program, etc.
This will add the program to the exclusions so it should Ask again.