If my computer has 1 administrator and 2 standard user accounts on the C drive, when I schedule Avast to scan at a certain time each day does the scan include all accounts, or just the account I am working in?
What are your scan settings? Are you using default settings?
I would say all files are scanned, including the other users. 
I can’t really answer your question. I think I am basically running default settings, altho I know there have been some I have changed. You would have to be more specific about which settings would affect this so I could check it out. I wish I were smarter about this, but I really need an answer to this because I am not opening the other accounts and doing scans within them.
Please folks. I need to know if I need to open each user account and scan, or if it scans all. No matter how dumb it seems, if I knew the answer I would not ask.
The standard Avast Full or Quick scan should scan all users.