I m missing 1 gb cause of Sony dvd maker du to a restarted dvd project,but I saw lot of the files locations and deleted it in app.datas((operations performed)cause it s the real system manifestation,even if DOS system is sealed by the hard drive,BIOS.In every system all from the original,the real one is showed in other or a diferent way))
To see hidden files,you have to go in control panel screen settings and to click on show hidden files,to go on the real option sheet and to activate it.

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