Install MSOffice with a new product key I bought at Costco today

Question

Install MSOffice with a new product key I bought at Costco today.

After I entered the product key, it said it's expired.

What can I do

Moved from: Microsoft 365 and Office | Install, redeem, activate | For business | Windows

Answer 1

Greetings!

This is Tin, I'm here to assist you. Looks like you're unable to redeem your Product key that you've purchased from Costco.

Please doublecheck if you're entering the Product key correctly without any typo, specially letters like O or 0.

Please also try to sign in your account to https://account.microsoft.com/services and check as it might be already associated with your account.

There's also a chance the the retailer didn't activate the key properly at sale, you need to reach Costco about this.

Thank you,

Tin

Answer 2

If you received a message indicating that your product key is expired after entering it, there are a few steps you can take:

1. Verify the Product Key: Ensure that the product key you entered is correct and that it matches the version of Office you are trying to install.
2. Check Purchase Source: If you purchased the product key from Costco, confirm that it is a legitimate key and not a volume license meant for organizations, which cannot be used by general consumers.
3. Contact Support: If the key is valid and you still encounter issues, consider reaching out to Microsoft support for assistance. They can help you verify the status of your product key and resolve any activation issues.
4. Redeem a Product Key: If your purchase of Office came with a product key, you can see instructions on where to enter it here.

If the issue persists, you may need to dispute the purchase with the retailer if you believe the key should be valid.

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References:

• Activate Microsoft 365 Apps for Business with a product key
• Problems with your Microsoft 365 for business product key?