📎 AI Summary:
The thread discusses using retail versus OEM Windows licenses, with the original poster inquiring whether purchasing a full retail version of Windows would allow them to reuse their existing COA key for multiple installations on their PC. A participant clarifies that a single Windows license generally doesn't expire and emphasizes that a COA sticker is tied to the original OEM installation, while retail versions come with a product key. Overall, the conversation highlights considerations around license types, reusability, and multi-boot setups, with an emphasis on following license agreements.
napninjanx

napninjanx

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Not OEM the full version of Windows.

I use my friends PC It's a Acer Aspire AT3-605-UR21 Intel Core i7 4th Gen. 3.4GHz 12 GB 1TB Desktop PC...

Anyway every time I format it from time to time. And I use the COA sticker that came with my desktop. I activate easily.

If I buy the full retail full version of Windows and will it come with a 25 digit key sticker were I can stick the COA next to my other COA key and use that 64 bit key to install Windows 7 Ultimate 64 Bit from time to time, I like to format my computer cause sometimes viruses, or I end up messing up the files.
 

Pauli

Pauli

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One license doesn't expire if you buy another one - that would be a violation of the license agreement. I'm sure Microsoft would be just happy to have you to have a million licenses... 😎

COA is a certificate that comes with a pre-installed Windows. It should work 'til Hell freezes... A freely bought Windows doesn't have a COA, it has a Product Number, 25 digit.

I'm not sure I fully understand you, but if you want to install several Windows versions, you can check http://windows.microsoft.com/en-us/windows/install-multiple-operating-system-multiboot#1TC=windows-7

It may not, perhaps, be all that easy to have more than one OS. Take care, won't you?
 
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