QuickBooks install diagnostic tool, which can I help you resolve many issues related to your QuickBooks software. While working with QB desktop, there could be several issues with the .net framework, MSXML, and C++, the QuickBooks install diagnostic tool can resolve such queries. Other problems that can be sorted by diagnostic tools are QB unrecoverable error, QB is not working error, QB unresponsive or sudden stop error, and plenty more. To get it to your computer, you need to visit the official QuickBooks website and download and install the tool. Finally, restart your computer and launch the QuickBooks install diagnostic tool and avail all features.