I appreciate you for taking the time to share your feedback, @junk4u.

When installing QuickBooks Desktop, you may run into Microsoft .NET Framework related errors. You can use the QuickBooks Install Diagnostic Tool to fix these issues. 

To use the QuickBooks Install Diagnostic Tool, here's how:

1. Open the QuickBooks Tool Hub.
2. In the tools hub, select Installation Issues.
3. Select QuickBooks Install Diagnostic Tool. Let the tool run. It can take up to 20 minutes.
4. When the tool finishes, restart your computer.

If the error persists, let' repair the 4.6 .net framework. There's no need to uninstall it. Depending on the operating of the server you're using, you can refer to this article for more detailed steps in fixing .NET framework errors: Manually fix Microsoft .NET Framework errors.

Also, you can read through these articles to learn more about fixing installation-related errors:

• Fix QuickBooks Desktop install errors
• Installation error about .net 4.7

Feel free to click the Reply button if you have other questions. I'm always here to help.