Hi,
Download the correct ISO file and make your own disk and use the Product Key that is on the COA Sticker.
https://www.heidoc.net/joomla/technology-science/microsoft/67-microsoft-windows-and-office-iso-download-tool
Download: Windows ISO Downloader.exe
Version: 6.00
Release Date: 11 April 2018
Requirements: Windows 7 or newer, .NET Framework 4.x, Internet Explorer 8 or newer.
Important: As of Version 6.00, we're adding back an experimental feature to generate links for Windows 7 and Office 2010. Generation of new links for these products is throttled, and not every download is always available in every language.
New links are generated on a first come first served basis, with users who enable the idle resource donation getting preferential treatment. If you have further questions, please use the
WinCert Forum to get in touch, so that other users can also benefit from the discussion.
And here are instructions on how to burn ISO images to disk:
http://www.snapfiles.com/get/ISORecorder.html
Then do a clean install:
http://www.sevenforums.com/tutorials/1649-clean-install-windows-7-a.html
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Using the downloaded ISO file Method may require phone Activation.
If it does require phone Activation, do not follow the Auto Prompts, but hold on for a real person to explain to as to what has been done for re-installation purposes
"How to Activate Windows 7 by Phone"
http://www.sevenforums.com/tutorials/18715-activate-windows-7-phone.html
The above method also will require you to go to your Computer Manufacturer's website > Support and Downloads Section > locate your Model Number and Operating System > then download and install the latest Drivers for it.
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Using the USB method in conjunction with the above Windows 7 download:
http://www.sevenforums.com/tutorials/2432-usb-windows-7-installation-key-drive-create.html
"How to Get and Use the Windows 7 USB/DVD Download Tool"
http://www.sevenforums.com/tutorials/31541-windows-7-usb-dvd-download-tool.html
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Or you can also borrow the exact same Retail Windows 7 Edition DVD and use your Product Key to reinstall.
Cheers.
