OpenProtectedStorage is a sandbox setting in Sandboxie Ini. It is typically specified as OpenProtectedStorage=y (see Yes Or No Settings), and indicates that Sandboxie should not isolate Protected Storage in the sandbox. For example:
.
.
.
[DefaultBox]
OpenProtectedStorage=y
Indicates that programs running in the DefaultBox sandbox will update the global system Protected Storage, rather than a sandboxed instance of it.
Related Sandboxie Control setting: Save outside sandbox: History of search strings and invoked commands
in Sandbox Settings > Applications > Web Browser