In this video tutorial we will show you how to reinstall Mac OS.
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In this video tutorial we will show you how to upgrade windows 7 to a Windows 8.
In order to upgrade windows 7 to a Windows 8, you must have Windows 7 installed and a DVD with a Windows 8 clear installation. Go to “computer”. Open the CD-ROM Drive with Windows 8 DVD and run “setup”. Choose a language and language options in next window.