Microsoft Windows and Office ISO Download Tool

"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 (to be released tomorrow)
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
You change the Boot Order in the BIOS to be able to boot from your installation media:
How to Boot Your Computer From a Disc or USB Drive
Then do a clean install:
http://www.sevenforums.com/tutorials/1649-clean-install-windows-7-a.html
The COA sticker is either on the underside of the Laptop or in the Battery Compartment.
With a Desktop it is either on the side, rear or top of the Computer Case."

Source: https://answers.microsoft.com/en-us/windows/forum/all/the-product-key-you-entered-appears-to-be-for/5030884e-104e-4417-91ae-b5c48cd6632a

Microsoft Windows and Office ISO Download Tool

https://www.heidoc.net/joomla/technology-science/microsoft/67-microsoft-windows-and-office-iso-download-tool

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Found the method useful :)
 

1. Connect the corrupted pen drive or SD card to your computer.
2. Hover your mouse on the Start button and Right Click.
3. Click Command Prompt (Admin). A CMD window will open.
4. Type diskpart and press Enter.
5. Type list disk and press Enter. A list of all the storage devices connected to your computer will be displayed.
6. Type select disk <the number of your disk> and press Enter. (Example: select disk 1). Important: Make sure you enter the number correctly. Otherwise, you may format your internal hard drive. You can type list disk again to check whether you are going correctly. There will be a star (asterisk symbol) before the name of the selected disk.
7. Type clean and press Enter.
8. Type create partition primary and hit Enter.
9. Type active.
10. Type select partition 1.
11. Type format fs=fat32 and press Enter. The format process will finish in a few minutes. You can write NTFS instead of fat32 if you want to carry files larger than 4 gigabytes. Don’t close the CMD until the work is finished.

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