Shadow Defender can run your system in a virtual environment called 'Shadow Mode'. 'Shadow Mode' redirects each system change to a virtual environment with no change to your real environment. If you experience malicious activities and/or unwanted changes, perform a reboot to restore your system back to its original state, as if nothing happened.
With Shadow Defender, you have the flexibility to specify which files and folders are permanently saved to the real environment. This ensures important files and folders are kept after a reboot.
If you want to make a maintenance-free computer, Shadow Defender will be your best choice.