Igor,

See my post #342. The F:\ drive that successfully ran the avast! Autosandbox on my system is not a removable drive. It is a second SATA drive that is installed in my system.

I also took the liberty of trying the same “experiment” on my D:\ partition (which is on the same physical drive as my C:\ partition). Autosandbox worked as it is supposed to. Looks like something is messing with the Autosandbox feature when run on files that are on my C:\ partition . . . .