Windows: Programs that "freeze" Windows are great for testing new software without risking your system or simply protecting a family member from infecting their computer. Each time you reboot, all the changes (including viruses) are erased. ToolWiz is another system restore utility, but this free program adds password protection.
How to Safely Test Software Without Messing Up Your System How to Safely Test Software Without Messing Up Your System How to Safely Test Software Without Messing Up You
The internet is full of sweet apps, but it's also packed with shady software.
We covered similar programs like Reboot Restore Rx or Steadier State that prevent changes to your computer. ToolWiz adds a password prevents someone from changing the system without your permission. It's compatible with all versions of Windows. Like other "freezing" programs, it lets you exclude folders from protection so your documents can stay intact, too.
ToolWiz Time Freeze | ToolWiz via MakeUseOf
Source : http://lifehacker.com/toolwiz-time-freeze-protects-your-pc-s-state-with-a-pas-1685043655