If you are referring to running IE11 in the AppContainer, you have to enable the two enhanced protection mode settings shown below. Click on the Apply button. Then reboot to make the settings effective. Also note the following if you are running Win 7: Ref.: https://answers.microsoft.com/en-us...ie-11-on/320ebe0a-28a1-4707-b944-cf3d1a32aa34
are refering to sandboxie as your used sandbox? then this thread my be a the appropriate target for your question: https://www.wilderssecurity.com/threads/sandboxie-acquired-by-invincea.357312/ add system informations please! at least IE is running here in sandboxie under win7/8/10 fine.
I know you purchased a Sandboxie license a few months ago, so I am going to guess your problem has to do with running IE under Sandboxie. What errors are you getting when you attempt to run IE sandboxed? You probably using one sandbox to sandbox all programs. Try using a new default settings sandbox as a dedicated sandbox for IE. Create one: Sandboxie control>Sandbox>Create new sandbox Leave settings on default, don't copy settings from existing sandboxes. Bo