Hi there, BetsySal.

I appreciate you for coming back to the thread to add about what you've done to fix the activation issue. Let me share additional troubleshooting steps to ensure you can resolve the activation issue and install the QuickBooks Desktop efficiently.

I recommend running the repair tool for QuickBooks Desktop. This tool can help fix common errors that can affect the performance of the software like keep getting an activation prompt. To start with, download the QuickBooks Tool Hub and you'll need to close QuickBooks to use this tool. Please know that we recommend you use Tool Hub on Windows 10, 64-bit for the best experience.

Here's how:

1. Close QuickBooks.
2. Download the most recent version (1.5.0.0) of the QuickBooks Tool Hub. Save the file somewhere you can easily find it (like your Downloads folder or your Windows desktop). 
3. Open the file you downloaded (QuickBooksToolHub.exe).
4. Follow the on-screen instructions to install and agree to the terms and conditions.
5. When the install finishes, double-click the icon on your Windows desktop to open the tool hub.

For additional information, you can click on this article: Repair your QuickBooks Desktop for Windows.

If you get the same result, I suggest opening this article to view various instructions on how to fix errors when you enter your product and license numbers or your activation code in QBDT: Fix activation, license, and product numbers errors.

If the issue continues to occur, I suggest contacting our QuickBooks Desktop Support again. They have the tools to pull up your account in a secure environment. Then, verify if the product information matches what you have. They can also help you get to a resolution quickly to register QuickBooks. Additionally, the activation process has a limit to prevent the license number from being simply copied and placed on a different computer. With this, only our support can verify if the license is used with the owner.

Additionally,  we removed your email address to keep you safe from scam email and to prevent your credentials from being used in any unauthorized businesses.

Lastly, I'm adding this article to further guide you in effectively managing your business using QBDT: Help guide for QuickBooks Desktop. It contains topics about advanced accounting, banking, and different troubleshooting steps to resolve unusual issues.

Let me know if there's anything else you need help with managing your QuickBooks Desktop. I'm always here to help you anytime. Take care and keep safe!