QuickBooks install diagnostic tool can resolve all the technical glitches that users encounter. The glitches can be related to the QuickBooks software or Windows. QuickBooks install diagnostic tool aids the users in detecting and resolving an issue automatically. It certainly is helpful. If it displays a message of ‘No Errors Detected’ then it might be that you have various unresolved issues. After the installation of QuickBooks is complete, you have to run it only after closing all background applications in your system.