RollBack Rx PRO - Single User License [Download] Take unlimited snapshots that fully capture the PC at that state in time. Recover files in real-time in the event of a system crash. Snapshots are encrypted and protected against any malware, viruses, Blue Screen of Death, deleted registry keys and ransomware (such as CryptoLocker, CryptoWall). Incredible speed: restore to any snapshot in a few seconds. Lightweight: doesn't hog resources and uses roughly 1% of harddrive space.