Microsoft 365家庭版订阅下Excel激活密钥查找及Office应用安装受阻求助

Hey there, sorry to hear you're hitting this activation roadblock—let's work through this together!

First off, a key point to clear up: Microsoft 365 subscription-based Office apps don't require a separate product key! Activation is tied directly to your subscribed account, so it's totally normal that you can't find a key anywhere on the subscription site—there isn't one for you to use.

Here's what you can do to fix the Excel activation issue and get other Office apps installed properly:

• Verify your account in Excel
  Open Excel, click File in the top-left corner, then go to Account. Check if the displayed account is the email you used to subscribe to Microsoft 365 Family. If it's not, click "Sign out" and log back in with your subscription account. Once logged in correctly, the activation should kick in automatically, and you'll see your subscription expiration date (Dec 04, 2024) show up here.

• Repair your Office installation if needed
  If your account is correct but you still get the key prompt, a corrupted install might be the issue:

  1. Open Windows Settings → Apps → Apps & features
  2. Locate Microsoft 365 (or sometimes labeled Office 365), click it, then select "Modify"
  3. Choose "Quick Repair" first—it's faster and usually fixes minor issues. Restart Excel after it finishes. If that doesn't work, go back and try "Online Repair" (this will re-download some Office files, so it takes a bit longer but is more thorough).

• Install other Office apps (Access, Word, etc.)
  That 4GB .img file you downloaded should include all the apps in your subscription, but if it didn't install everything, you can grab a fresh, full installation package directly via your account:
  Just log into your Microsoft 365 account page, find the "Install Office" option, click it, and choose "Install". This will download a package that includes all eligible apps (Word, Excel, Access, PowerPoint, etc.), and when you run it, it'll automatically activate using your subscribed account—no key needed.

The "expires in a week" message you see when skipping the key prompt is just a placeholder because the app hasn't successfully linked to your active subscription yet. Once you get the account linked properly, that message should update to show your actual subscription end date.

备注：内容来源于stack exchange，提问作者Taptronic