I appreciate you for diligently following through with all the troubleshooting steps provided by my colleagues on this thread to resolve the installation issue, JC1015. Let me help you by routing you to our QuickBooks Desktop (QBDT) support team.  

Since the issue persists with Database Server 34 installation in your QBDT after executing the troubleshooting, I recommend contacting the QBDT customer care team. They are well-equipped with the tools to check on your end and provide specialized assistance in resolving this matter.

You can follow the steps below on how to contact them:

1. Open your QBDT account.
2. At the top of your account, select Help.
3. Choose QuickBooks Desktop Help/Contact Us.
4. Click on Contact Us.
5. Please give a brief explanation of your concern, then press Continue.
6. Log into your Intuit account. Select Continue, then Continue with my account.
7. An email with a single-use code will be sent to you. Type in your code and click Continue.
8. Choose if you want to Chat with us or Have us call you.

Moreover, know that our QBDT Enterprise customer support hours are available any time on any day to answer any inquiries you may have.

Keep me posted if you need further assistance with QuickBooks Database Server Manager or any QBDT-related inquiry. I’ll jump right back in to assist further.