• User must repair or reinstall .NET Framework.

Step One: Downloading and running QuickBooks Install Diagnostic Tool

• Users must first download the QuickBooks Install Diagnostic Tool.
• Next, they must save the file to their desktop when prompted.
• They should close all running programs and run the tool by double-clicking ‘QBInstall_Tool_v2.exe’.
• This process might take up to 20 minutes based on the speed of the internet connection and system performance.
• When the diagnosis is done, users must restart their systems for properly updating the components.

Step Two: Updating to the latest Windows release

• If the error persists, users must download and install ‘Windows Updates’.
• They should install all missing updates related to .NET Framework, MSXML and C++.
• To do this, users must hit the Windows key and type ‘Windows Update’ in the search section and then choose ‘Check for Updates’.
• If any error occurs during Windows Update, users must contact an IT expert or Microsoft.

Step Three: Repairing the .NET Framework manually

The steps for doing so are same for Windows 8, 8.1, 10, as are the steps for doing so for Windows 7 and Vista.

• Users must reinstall QuickBooks via a clean install.
• Before QuickBooks is uninstalled, users must have the QuickBooks Desktop download file or installation CD and license numbers at hand.

Step One: Uninstalling QuickBooks Desktop

• Users must hit Windows+R, which opens the Run command.
• They must type ‘Control Panel’ in the box and select OK and then ‘Programs and Features’.
• If ‘Control Panel’ is in ‘Category View’, users must select ‘Uninstall a Program’.
• In the programs list, choose ‘QuickBooks’ and then ‘Uninstall/Change’.
• Then, complete the steps as instructed.

Step Two: Renaming the Installation folders

• This can be done manually or by using the QuickBooks Clean Install Tool.
• To use the QuickBooks Clean Install Tool, users must download the QuickBooks_Clean_Install_Tool.exe file and save it on desktop.
• They must then open the QuickBooks_Clean_Install_Utility.exe file and accept the license agreement.
• Next, users must choose the QuickBooks Desktop version and select ‘Continue’.
• When the message ‘QuickBooks is now ready for a clean install, please install to the default directory’ appears, users must select OK.
• To manually rename the folders, the hidden file must be displayed using Windows Explorer and then each of the folder locations renamed.
• ‘Old’ or ‘damaged’ should preferably be added at the end of the folder name to prevent QuickBooks from recognizing it to create a new folder.
• If access is denied while renaming the folder, users must right-click ‘Windows Task Bar’ and choose ‘Task Manager’.
• Then, under ‘Processes’, users must select the ‘Image Name’ column for sorting processes in an alphabetical manner by a name.
• Next, select QBDBMgrN.exe, QBDBMgr.exe, QBCFMonitorService.exe, Qbw32.exe and then select ‘End Process’.
• Now, select Yes when this message appears: ‘WARNING: Terminating a process can cause undesired results including loss of data and system instability…’

We will have to download and run the QuickBooks Install Diagnostic Tool to resolve this issue. The best part of this tool is that it is automatic. It itself diagnoses fixes the issues pertaining to Microsoft .NET Framework, C++ and MSXML. It is recommended that you must use this tool before trying any other method to resolve the issue.

We will follow these steps:

• Download and install the QuickBooks Install Diagnostic Tool.
• Upon the prompt we will save the file to the local Desktop
• We will now double-click on QBInstall_Tool_v2.exe to run it. However, we will have to turn off any other running program before proceeding to this step.
• Once we are done with the diagnosis, we will restart the computer to make certain that other components get updated.

In case you keep getting the same error even after following the first process, you will need to update WIndows and its missing components related to .NET Framework, MSXML and C++. It is simple to update your WIndows:

• Press Windows key on the keyboard.
• We will search for Windows Update in the search bar.
• In one of the results that appear on the screen, we will check for Updates.

Or we will need to manually update .NET Framework.

Performing a clean install might fix the issue for good. A clean install is a process where we uninstall QuickBooks Desktop for Windows, rename the installation files that are left behind, and then try to restart the program. Please note that you might need to make a backup of your QuickBooks Desktop, otherwise if you have the installation CD and Licence numbers with you, it will do.

Three easy steps are given below:

• Uninstalling the QuickBooks Desktop.
  • On the keyboard press Windows Key+R.
  • Now you are supposed to type Control Panel and hit Okay.
  • Program and Features> control Panel> Uninstall a Program
  • QuickBooks Desktop> Uninstall/Change
  • Uninstall the program.
• Renaming the Installation Folders
• Reinstall QuickBooks Desktop