QuickBooks Install Diagnostic Tool is a tool provided by Intuit, the makers of QuickBooks, to help resolve installation errors that can occur while installing the software.

Here are the steps to use the QuickBooks Install Diagnostic Tool:

Download the QuickBooks Install Diagnostic Tool from the Intuit website.
Close any open programs and run the tool.
The tool will scan your computer and diagnose any installation errors related to Microsoft components such as .NET Framework, MSXML, and Visual C++.
After the scan is complete, restart your computer.
Try installing QuickBooks again.
If the tool is unable to resolve the installation error, you may need to contact QuickBooks customer support for further assistance.
See also: https://bit.ly/41PZXup