Hitmanpro trial reset. Click “Scan Leftovers”, and Max Uninstaller will conduct a full scan on your computer for program leftover. Step 5: After the scan finish, click “Delete Leftovers” and “Yes” button to thoroughly remove all the leftovers. If you correctly performed the above 7 steps, HitmanPro 3 should have been removed from your system. Step 6: Final steps is clicking the OK button in the appeared message.