Factors of QuickBooks Error 1603

There are various factors that trigger error 1603 in QuickBooks. 

• This error happens due to the deleted QuickBooks files by mistake. 

• It occurs due to a corrupted or damaged windows registry of the desktop.

• When your system gets attacked by malware or viruses such as windows files. 

• Your system may off because of the power failure. 

• Incorrect download & partial installation of the QB software.

Indications of QuickBooks Error 1603

Following are the signs and symptoms through which you can identify the error 1603. 

• An error message appears on the screen. 

• Corrupted MS Windows installer.

• Wrong or corrupt installation of the MS NET 1.1 installer.

• Damaged Company file.

• An outdated or old version of QBs desktop.

• Over-packed folder of windows temp.

• A locked company file is open on the QBs desktop.

Important Points to Remember

• It may assist you in resolving the installation-related issues.

• If you can fix this error on your own then it is recommended to consult a team to perform.

• It is advised to contact your computer’s manufacturer or windows experts.

• Even after performing the resolving steps, if you face any error, you have to contact the QuickBooks Supports. 

Troubleshooting Methods to Resolve the QuickBooks Error 1603

Follow are the various resolving solutions that you have to follow in order to resolve the QuickBooks error 1603.

Solution 1: Fix MSXML 4.0 

Follow the steps to fix the MSXML 4.0 using CD in the different operating systems. We are going to discuss the steps for windows 7, Vista, or Windows XP.

• Firstly, you need to insert a CD disk into your PC & close all the open QBs windows of installation.

• Now, follow the on-screen instruction, to start the installation of MSXML for the OS.

Windows 7 or Vista

• Firstly, click the button start.

• Now, type the msiexec.exe/forum “D: \QBOOKS\msxml.MSI” in the search box & press enter.

• Replace D in case your letter of CD drive is distinct.

Windows XP

• Firstly, open the Run command box by pressing the Windows+R key together. On the bottom left of your screen, it will appear.

• Now, type msiexec.exe/forum “D:\QBOOKS\msxml.MSI” in the run command box & hit the OK button.

Solution 2: Download and Launch the File of QBinstallTool.exe 

Follow the below-mentioned steps to troubleshoot the error 1603 by launching the file of QBinstallTool.exe. 

• To start with, you need to download & install the file QBinstallTool.exe (648kb) & launch it like the prior resolution to this installation issue.

• Now, you must save the file to the desktop after the completion of downloading. 

• After that, open the downloaded file to launch the QB install diagnostic tool.

• This tool resolves error 1603. 

Solution 3: Update the Windows

This is important to download a current version of the Windows Operating system to fix the QuickBooks Error 1603. Following are the steps to update your outdated windows. 

For Windows 7

We are going to mention the steps of updating Windows for Windows 7.

• Firstly, navigate towards the start.

• Now, go towards Control Panel.

• Then, hit the options system and security.

• You have to tap on the Windows updates.

• At last, you have to hit on the Check for updates.

For Windows 8, 8.1 or 10

We are going to mention the steps of updating Windows for Windows 8, 8.1, or 10.

• To start with, hit the icon of Windows.

• After that, go towards the setting.

• Then, move towards Update and security.

• At last, you have to hit on the Check for updates.

Solution 4: Reinstall MS .Net Framework

You need to follow the steps that we are going to mention to reinstall MS .Net Framework.

• Firstly, access the Run command window.

• Type the Control panel in the run command & press Enter.

• After that, hit Uninstall program.

• Then, uninstall all the components of  C++ & MSXML.

• After that, reboot your PC after the completion of uninstalling.

• At last, download & install again all the components from the official Microsoft Website. 

Solution 5: Repair MS .Net Framework 

You must follow the steps that we are going to mention to repair MS .Net Framework.

• Firstly, you have to navigate towards Control Panel & open the option Program & Features.

• Then, click on the Windows Features.

• Search for the .NET version & click twice on it.

• Put the checkmark on .Net Framework 4.5 & 3.5.1 option. 

• Now, you have to hit the Uninstall program.

• Then, a Window will appears on your screen & ask you to Repair/Remove a program.

• After that, hit the tab of Repair & then you have to start your system again.

• Then, check the .Net Framework options 4.5 & 3.5.1 again.

• At last, again you have to restart your PC.

Solution 6: Change the Settings of Windows Security Manually

Windows stop you to download & install the updates from any third-party applications. If you want to fix the error, you need to make changes in the windows security. Follow the below steps that can help you to the settings of the windows security. 

• Firstly, you need to log in as an administrator.

• Open the Run command by pressing the windows+ R keys simultaneously.

• Type the gpedit.msc in the run command box & press enter.

• Navigate towards the category of Admin templates in the section of computer configuration.

• Then, you have to locate Windows components.

• After that, hit prohibit user followed by windows installer.

• Click twice the policy to change it.

• Tick the option Not Configured.

• At last, hit OK & you have to install QBs again.

Solution 7: Restart the Service of the Windows Installer

Following are the steps to restart the service. 

• Firstly, navigate towards Control Panel.

• Then, hit System & Security.

• Locate Administrative Tools.

• Click twice on the Services.

• Search for the service of  Windows Installer.

• Hit the Restart-Service.

Solution 8: Uninstall the QuickBooks

The common and general method that uses to resolve most of the errors of the QuickBooks is to uninstall the QuickBooks and reinstall it. Following are the steps that are helped you in uninstalling the software.

• Access the Control Panel and look for the option Programs & Features.

• Find your software QuickBooks.

• Then, with a right-mouse click, click on Uninstall.

• At last, you need to follow the instructions that appear on the screen.