How to implement the return of the system to its original state?

Question

Windows

Tell me what software to choose so that after a reboot it returns the system to its original state, you need a program like Returnil Virtual System, it is considered both paid and free, it worked under Windows 7 and Windows 8.1

Answer 1

Shadow User was like...

Answer 2

Windows Backup also.

Answer 3

1. Make Windows boot from VHD disk.
For example, like this - Replacing SteadyState in Windows 7 . Clumsily of course, but you can think of something more elegant.
2. SteadierState
3. Paid - Deep Freeze, Time Freeze, Returnil