The installation errors in QuickBooks can occur due to a damaged Microsoft component or a corrupted Microsoft MSXML and C++ files. However, you can resolve the problem using the QuickBooks install diagnostic tool available on Intuit’s website. Firstly, you will need to download the tool from the Intuit support webpage and install it on your system. You will receive a file QBInstall_tool_v2.exe, once you double-click over it, you can follow the on-screen instructions to install the QuickBooks diagnostic tool. Also, make sure to perform the Windows update as per the latest release to avoid installation-related errors in the future.