If you've ever known DeepFreeze software to protect security or computer is, this time I will present a software similar to the comments but the features are the "top" more is ShadowUser

Advantages when using ShadowUser than DeepFreeze:
* Create a more secure admin account because it does not require ShadowUser set password, so you do not need to use the easily removed. If you forget your password DeepFreeze is quite đấy be gay!
* During use, if you like the software but do not want to install it off when the mode ShadowMode ShadowUser allows you to save the configuration system right now. Individual with DeepFreeze, you have to do from the beginning.
* Unable to run ShadowUser with shortcuts, only the Administrator account with full rights to control ShadowUser.
* Note: If you need to "test" before using official, you should backup drive C (or install Windows) with Norton Ghost and then set up in ShadowUser C. After "Block mode" restore the C drive to remove all traces of the ShadowUser.