System back up files question

technood

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Mar 12, 2015
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Windows 7, when I create a full system back up there are three files created, I am not sure if I need all three as they take up a lot of disk space. One of the files is a small disk like icon called Dell pc folder and upon opening it I see it has all the same data as the WindowsImageBackup folder. I only need a back up of my entire system in case of a major problem with my OS so can I delete one of the folders and if so which one, the third file is just MediaID bin.
 
" I only need a back up of my entire system in case of a major problem with my OS "

If you use Windows to create a backup. Then have an major OS(Windows issue), how do you expect to restore? You probably can't rely on the OS anymore can you? You should consider creating an image of your system with something like acronis.
http://www.acronis.com/en-us/personal/computer-backup/