Windows 10: Can I reuse my Windows 10 key later?

Windows 10 came preinstalled on my computer when I bought it. Im looking to switch to Linux fully. I've been on dual boot for a while and just don't see any point to it anymore. Is there a way to save my Windows 10 key now, and be able to use it during installation in case I later decide to install windows again?

I think I already found my Win 10 key using this guide:

https://www.howtogeek.com/660517/how-to-find-your-windows-10-product-key-using-the-command-prompt/

submitted by /u/Very_mature_sex_man
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:)

 

windows 7 key reuse

I'm asking the second thing, if I can reuse my windows 7 key on another machine without any problems. (sorry, I see I forgot to mention it in the original post ^^)

 

windows 7 key reuse

Hey guys,

I'm selling my 1 year old laptop (laptop 2 in sig), which came with Vista OEM.
I installed windows 7 on it with a key from MSDN. My best friend(the buyer) will format the laptop before he gives it to his sister, so I wanted to know how I can reuse my key for a new pc in the future.

I googled a little bit, but I couldn't find a clear answer. Will I have to call Microsoft or something?

kind regards,

 

windows 10 key

Thanks but I don't want to do any decrypting. I want to download a Win 10 ISO from Microsoft and install it using my Win 8 key. No other steps required. Is that possible?