In the process of using a computer with Windows OS, the cases of system crash caused by virus infection, misoperation and other possible reasons are not rare. If you want to get rid of this kind of crisis, the best solution is to make a system backup/snapshot and immediately restore your Windows to normal state when it's necessary, rather than repeatedly reinstalling the Windows itself, a large number of hardware drivers and software, as well as repeating the verbose personalized system settings.

OneKey Ghost is a very practical and necessary freeware utility, based on the powerful but discontinued Symantec Norton Ghost 11.x (equivalent to its Windows desktop GUI). With which you can backup and restore any partition (especially for the OS partition) or the whole hard disk under x86 (x64), WinPE, DOS, with just one-click, and all the other things is automatic.

Restoration is a primary data recovery software, portable, free of charge, and very small, only about 160 KB. Its main usage is to restore the important files which had been removed to recycle bin because of mistaken operations.