How can I find my Microsoft office product key?

I went through about 2 or 3 PC's...(by the way, Toshiba SUCKS! Don't ever buy one.) Anyway, I brought 2-3 computers and they all crashed for one reason or another. but this was about maybe 10+ years ago. I computers were Office came on the computer and once I actually bought a product key. I can't find it, but I have my old computers and just the box where my office product key came in. I have absolutely no idea where it is, especially after moving. Anybody have any ideas on how to get it? I called support, but they sad without the email I used, there is no way to pull it up.

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Northwest · M

If this was 10 years ago, the product is most likely outdated. Microsoft has moved to a cloud model, with Office 365, where you buy a yearly license, and the software is updated automatically. It allows you to use Microsoft office on 5 different computers and 5 mobile devices, each comes with 1TB worth of cloud storage.

Even if you find the key, that product is no longer available.