Easiest Method for fixing QuickBooks Error 1603

Quickbooks update error 1603 usually hinders the updating and installing process of the software. The error can lead to corruption within the company file. If you are facing the same error. Then, just stop here and read the full guide covering troubleshooting methods to eliminate this kind of irritable error from the system. But, before jumping straight into the troubleshooting part, let’s first focus on the symptoms and causes of the error. So, let’s get started. 

Symptoms of Quickbooks Error 1603

The error brings lots of hindrances to the system. That will take the shape of common symptoms and signs. The user needs to learn about these signs to identify the error. 

  • Uninstallation of Microsoft NET 1.1 SP1 installer. 
  • Overpackaging of Windows temp folder. 
  • Using an old version of Quickbooks software. 
  • Errors pop up like Install Error 1603 and 1642
  • Corruption within the Quickbooks files.
  • A file is locked in the Quickbooks setup.
  • Restriction caused by insufficient permissions. 
  • Microsoft Windows Installer gets corrupted. 

Vital Causes behind Quickbooks Error Code 1603

Well, all of these identification signs arise due to some causes. Read below to know about them. 

  • Corruption caused to QB files or Windows files by viruses or Malware. 
  • Mistakenly deleting some QB-related files. 
  • Invalid entries and corruption in the Windows registries. 
  • Another reason can be the corrupt installation of the software. 
  • The system is turning off because of power failure. 

Solutions to troubleshoot Quickbooks Error 1603

Providing below are some easy solutions to tackle the issue. You only need to perform them till the error gets resolved.

Solution 1: Run Quickbooks InstallTool.exe

  • The first and foremost thing is to download and install the QBInstallTool.exe file that has a 648 KB file size. 
  • Then, save and store the file type onto the desktop.
  • Tap on the saved Quickbooks file.
  • Run Quickbooks Install Diagnostic Tool, one of the best tools of Quickbooks Tool hub.
  • If the error has not been resolved then move to the next solution. 

Solution 2: Update Windows

The user needs to install the missing updates related to .NET Framework, MSXML, and C++. For that reason, learn these steps:

  • Press Windows Keys in the beginning. 
  • Now just open the windows search bar and type Windows Update. 
  • Then, select the tab named Check for Updates. 
  • Take the help from the Microsoft professionals if facing any difficulties while conducting the operation. 

Solution 3: Download the Quickbooks Tool Hub

Quickbooks Tool Hub needs no introduction. It is the best software known for its amazing collection of different other tools. You can remove various kinds of errors just by downloading and running the tool. So, what are you waiting for, when you have all the solutions in just one platform. It is highly recommended to use this amazing tool and make an error-free system.

Solution 4: Repair MSXML 4.0

Install Quickbooks via CD
  • Try to insert the Quickbooks CD, only if the QB installation window appears.
  • Then shut it down. 
  • Now, install the MSXML in the operating system through the given instructions: 
Windows 7 or Vista
  • Tap on the windows or start icon in the beginning. 
  • Now, move to the search dialog box and type in exe   /fvaum  “D:/QBOOKS/msxml.msi” and then hit the enter button. 
  • In case the CD force the msiexec.exe/fvaum ‘D:/QBOOKS/msxml.msi in the search dialogue box, then just press the enter button. 
Windows XP
  • Tap on the windows tab and select the run icon in the first place. 
  • Now, in the open search box, you need to type in the msiexec.exe/fvaum’D:/QBOOKS/msxml.msi and enter the OK button. 

Solution 5: Uninstall the Quickbooks Desktop

  • The first thing that the user needs to do is to press Windows + R button and open the run command. 
  • Consequently, type the control panel and hit the OK button. 
  • Tap on the Programs and Features in the next step. 
  • From the list of programs, you need to choose the Quickbooks icon. 
  • Lastly, just select Uninstall/Change option. 

Solution 6: Use Selective Startup 

  • In the beginning, the user needs to create a backup of the company file.
  • Also, keep Quickbooks desktop product and license info with you.
  • After that, start the system in selective start-up mode. 
  • For that, you need to press the Windows + R button and type MSConfig.
  • Hit the OK button and move to the general tab. 
  • Now just select the selective startup and load system services. 
  • At this moment select hide all Microsoft services and disable all. 
  • Uncheck the Hide all Microsoft services checkbox.
  • Then make sure that the windows installer checkbox is marked. 
  • Press OK followed by restarting the system,
  • Install the software again.
  • In the last, switch back to the normal startup mode.


These are all the solutions to remove Quickbooks update error 1603. Although the error will get resolved yet, it will appear in the system then dial the Quickbooks customer care support contact number. 

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.