• Free Technical Support
• Supported Models : MacBook: Late 2008 or newer, MacBook Air: Late 2008 or newer, MacBook Pro: Mid 2007 or newer, Mac Mini: Early 2009 or newer, iMac: Mid 2007 or newer, Mac Pro: Early 2008 or newer, Xserve: Early 2009
• These DVDs are NOT original. This product comes with free online technical support. Give it a try if you have issues. Installing or upgrading your software from a DVD is NOT a quick process and can take 45-60 minutes to complete. Important: During the installation DISCONNECT your Mac machine from Internet. Free online technical support. Please check into the Description (bellow) how to get over the most common error that might pop-up when you are trying to boot from DVD.
• Please be aware that it might not work for every mac! This is the simplest possible install procedure: 1. Insert DVD DL into DVD drives. 2. Restart by holding the Alt key (or Option key, depending on the keyboard model). 3. Once the start options appear on the screen, you can release the ALT key, select the Install option and follow the instructions. You can choose to erase/format the hard disk before installation - recommended.
• you can RETURN it anytime BUT PLEASE do not chose the reason as "Defective".This Item has over 600 units sold per year with 5% "negative" feedbacks. A non-playing disc is not a sign of a “bad” disc, but rather just means that particular CD/DVD player cannot play it.
• Plase make sure your DVD drive is compatible with the DVD reader on your mac if not sure plase purchase the usb version just search for Tech Shop pro el capitan
• If not sure with the compatibility or have any questions please feel free to contact Me

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