How to reuse a microsft office product key after a full computer reset?

[Shafiqal Ashraf]

I purchased my office product key about 2 years ago when I was building my computer. I had already activated it at the time for my personal use, however, my computer had a major problem a year and a half later and had to be fully reset. Once I got my computer back from the shop, I had lost all access to powerpoint and word via the app. I tried to re-enter my product key but it says that it has been used and could no longer be reused. Can anyone help me with this issue? I would like to use powerpoint again using the same product key.

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