Unfortunately, there are many dishonest sellers who offer stolen, abused, or otherwise unauthorized Microsoft product keys for sale. If you bought a product key separate from the software, it’s very possible the product key was stolen or otherwise fraudulently obtained, and subsequently blocked for use. If your Office product key doesn’t work, or has stopped working, you should contact the seller and request a refund. Having problems with your product key? I can't find my product keyįor help with finding your product key, select your version of Office below: Step 3: Follow the prompts to finish the redemption and setup process. Step 2: Enter Office product key without hyphens, and then select Next.