I've also tried out all of the other 'key finder' programs suggested in countless other articles and none of them can find the Key in Office Home & Business 2013, nor have I been able to do so by hacking / searching the Registry. and the Belarc program I can (and subsequently have) found the last 5 characters of the Key but that's not going to do me any good after the re-install unless I have the rest of them. Not only is this the Dell OEM version but I've already had to go through Microsoft once to obtain a new (replacement) Product Key due to an earlier problem and since it's the OEM version there's no record of it on the Microsoft 'My Account / Office Products' page apparently if you didn't purchase the Retail version, the Product Key is not recorded there (but it is fully registered and functioning, of course).

I've managed to get the Windows 10 Pro Product Key using the latest version of Belarc Advisor but I'm hitting a brick wall on my installation of Office Home & Business 2013. I've read myself almost blind over the last 3 days and many hours now and I still can't come up with a definitive answer so I'll restate the question: How do I either back-up the Office Home & Business 2013 'activation file' (or token) or discover and extract the complete Product Key for it? After I upgraded my Windows 8.1 Professional (32-bit) Dell to Win 10 Pro I've been having horrible crash problems it's obvious that I'm going to have to reformat and start from scratch.

My original post is copied and pasted below. Disclaimer: I've posted this on several Microsoft 'Community Support Sites' and though I have yet to have an actual Microsoft tech support guy address the question, several 'MVPs' have, but nobody has yet come up with a totally workable answer, although they have tried. One of the guys who posted something (after I showed him proof that there is such a thing as a Dell OEM-supplied version of MS Office 2013 Home & Business - he originally thought there was no such animal) was that I should 'go back to Dell and ask them' so here I am.

Home and business 2013