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Hello There,
We recently purchased a Microsoft Office Professional Plus 2021 product key ([Moderator note: personal information removed]) online. However, when attempting to install and activate it on our Windows 11 system, we encountered the following error message:
“This product cannot be activated because the product key is not valid.”
Could you please advise on how to resolve this issue?
I removed the product key from your message. Since this is a public forum, you should never post personal information such as product keys or e-mail addresses.
Sorry to be the bearer of bad news, but the error message is likely correct. You have been provided with a product key which isn't valid. You should ask the seller for your money back.
Could you please let me know the key [Personal info removed] which is provide for the Window user or for Mac system
So kindly let me know where can I find the solution about this issue.
So kindly let me know where can I find the solution about this issue.
All you can do is contact the seller.