The QuickBooks Install Diagnostic Tool is a quick remedy for discovering and repairing QuickBooks errors during any installation. If QuickBooks detects a mistake, this diagnostic tool is always accessible to assist. QuickBooks Desktop has a number of features that rely on basic Microsoft components. QuickBooks will face troubles if any of these components stop working for whatever reason. In addition to the QuickBooks error, this diagnostic tool checks for problems with the .NET Framework, C++, and MSXML.