MiniTool ShadowMaker Free is an all-in-one system backup and data protection solution that can be used to back up system/disk/files/folders, to customize backup schedule, to manage disk space taken up by backup files, to create WinPE bootable media, to clone hard drive, and so on.
Clonezilla - Clonezilla is a suite of software that's designed to allow you to back-up and image new hard drives with your data.
Sandboxie - Sandboxie is a program for Windows that is designed to allow the user to isolate individual programs on the hard drive.
Macrium Reflect - Macrium Software - the creators of Macrium Reflect backup, imaging and cloning software.
Deep Freeze - DESCRIBING DEEPFREEZE SOFTWARE Deepfreeze, by Faronics, is an application that solves a unique problem that many companies have these days; it prevents an end user from making permanent changes to important system/administrative files.
Acronis Cyber Protect Home Office - (Formerly Acronis True Image) Complete protection for your digital life
Cuckoo Sandbox - Cuckoo Sandbox provides detailed analysis of any suspected malware to help protect you from online threats.