Obviously, since the emergence of 7-Zip, WinRAR was no longer the best compression/decompression software (mainly according to the compression ratio). But there is no denying the fact that WinRAR still has the most users around the world until now.

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.

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7-Zip, believe that a lot of people heard of it, but few of us really used, just because we are accustomed to the most common WinRAR and the once - great WinZIP. Anyway, 7-Zip is the one which currently has a extremely high compression ratio archiver (developed by Igor Pavlov from Russia), this also is the most important technical characteristics measure for such applications. In addition, 7-Zip releases based under GNU LGPL , so it is open source and free.