Then I installed Nitro Pro 9 in a sandbox and that works fine as well.
However when closing Nitro it does not terminate all services running in the box. Then I terminate programs in the box manually. That works.
Then I try to delete the contents of the FTK imager box. That tells me "Please terminate programs running in the sandbox before deleting its contents." AND at the same time it STARTS the Nitro sandbox with services Start.exe, SandboxieRpcSc.exe and SandboxieDcomLaunch.exe. in it.
When I terminate programs for the FTK imager box is tells me "There are no processes to terminate". When I try to delete the contents of the FTK imager box same it tells me "Please terminate programs running in the sandbox before deleting its contents." Stuck in a loop.
Now comes the fun part. When I try to delete the Nitro sandbox it tells me "Please terminate programs running in the sandbox before deleting its contents." When I terminate programs for the Nitro box, and there are none running, it tells me "There are no processes to terminate".
How can I get rid of both sandboxes and completely remove them? Yes, removing them is also not possible because it tells me "Please delete contents of sandbox FTK before invoking this command."
Why does the Nitro box start up several services when I try to delete the contents of the FTK imager box?
Also, just to test this out, I tried to remove another sandbox and again it tells me "Please terminate programs running in the sandbox before deleting its contents." and when I terminate programs it tells me "There are no processes to terminate." as well as ALSO firing up the above mentioned services in the Nitro box again.
So regardless of what box I am trying to remove it starts those services in the Nitro box.
You see I am stuck in a loop and two or more boxes are actually somehow linked to the Nitro box or each other. How and why and is this not a security breach? How can it happen that trying to remove one sandbox starts services in another sandbox? Are sandboxes not 100% independent from each other?
Below the config for the Nitro and FTK box. Please help. Thank you

[NITRO]
Enabled=y
ConfigLevel=7
Template=AutoRecoverIgnore
Template=Firefox_Phishing_DirectAccess
Template=Chrome_Phishing_DirectAccess
Template=LingerPrograms
Template=BlockPorts
BorderColor=#40FF00
NeverDelete=n
NotifyInternetAccessDenied=y
NotifyStartRunAccessDenied=y
BoxNameTitle=n
ClosedFilePath=%{4C5C32FF-BB9D-43B0-B5B4-2D72E54EAAA4}%\
ClosedFilePath=%{BFB9D5E0-C6A9-404C-B2B2-AE6DB6AF4968}%\
ClosedFilePath=%Personal%\
ClosedFilePath=%{374DE290-123F-4565-9164-39C4925E467B}%\
ClosedFilePath=%My Music%\
ClosedFilePath=%Favorites%\
ClosedFilePath=%{56784854-C6CB-462B-8169-88E350ACB882}%\
ClosedFilePath=%Desktop%\
ClosedFilePath=%My Pictures%\
ClosedFilePath=%My Video%\
ClosedFilePath=%{7D1D3A04-DEBB-4115-95CF-2F29DA2920DA}%\
ClosedFilePath=C:\Users\User\.VirtualBox\
ClosedFilePath=\Device\Mup\
ClosedFilePath=InternetAccessDevices
CopyLimitKb=491520
ForceProcess=nitropdf.exe
[FTK]
Enabled=y
ConfigLevel=7
Template=AutoRecoverIgnore
Template=Firefox_Phishing_DirectAccess
Template=Chrome_Phishing_DirectAccess
Template=LingerPrograms
Template=BlockPorts
BorderColor=#40FF00
NeverDelete=n
NotifyInternetAccessDenied=y
NotifyStartRunAccessDenied=y
BoxNameTitle=n
ClosedFilePath=%{4C5C32FF-BB9D-43B0-B5B4-2D72E54EAAA4}%\
ClosedFilePath=%{BFB9D5E0-C6A9-404C-B2B2-AE6DB6AF4968}%\
ClosedFilePath=%Personal%\
ClosedFilePath=%{374DE290-123F-4565-9164-39C4925E467B}%\
ClosedFilePath=%My Music%\
ClosedFilePath=%Favorites%\
ClosedFilePath=%{56784854-C6CB-462B-8169-88E350ACB882}%\
ClosedFilePath=%Desktop%\
ClosedFilePath=%My Pictures%\
ClosedFilePath=%My Video%\
ClosedFilePath=%{7D1D3A04-DEBB-4115-95CF-2F29DA2920DA}%\
ClosedFilePath=C:\Users\User\.VirtualBox\
ClosedFilePath=\Device\Mup\
ClosedFilePath=InternetAccessDevices
CopyLimitKb=999999
ForceProcess=ftk imager.exe
DropAdminRights=y
I had exact behaviour already once with other sandboxes, reverted back to an older and clean OS image with Macrium Reflect and the problems were gone. So something is messing up somehow...