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Published on 15 Oct 2013 | over 3 years ago

TUTORIAL - how to install windows 7 pro format, reinstall Windows7. Complete system wipe out and destructive format of the operating system BACK UP ALL DATA FIRST!! You will need your operating system CD/DVD and a valid genuine product key, Certificate of Authenticity C.O.A. sticker. You will need to retype this key which contains 25 characters during re-installation in order to reactivate your fresh install of windows. You need to do this to validate your install and it will then re-activate windows and allow you to download all system security updates and service packs for your operating system. hardware and operating system issues

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