SymptomsYou are unable to create a new Briefcase in Windows virtual machine by right clicking on Windows desktop.
CauseShared Profile option may conflict with Briefcase feature.
Resolution1. Launch Parallels Desktop application from application folder and do not start the Virtual Machine.
2. In the Virtual Machine list right click on the virtual machine name --> Click Configure
3. Go to Options tab --> Sharing --> un-check or disable Shared Profile, "Smart Mount" and un-check "Mount virtual disk to Mac desktop" option.
4. Start the Virtual Machine and check the issue.