A Handy Troubleshooting Guide For QuickBooks Error 1603       

QuickBooks Desktop of Intuit is an accounting application that helps millions of enterprises manage their day-to-day bookkeeping tasks, including creating invoices, tracking inventory, simplifying taxes, etc. But despite being such an advantageous accounting application, QuickBooks Desktop is not safe from errors and technical glitches. This blog will talk about QuickBooks error 1603, which a user can encounter while installing QuickBooks Desktop on their computers. A number of reasons can be behind QuickBooks error code 1603, which you will get to learn reading this blog, along with the troubleshooting solutions to resolve it.

For immediate assistance to get over QuickBooks error 1603, don’t hesitate to speak with our QuickBooks experts at +1-855-856-0042.

QuickBooks error 1603 pops up on the computer screen with the following error warning: “The update installer has encountered an internal error.”

What can be the reasons behind QuickBooks error code 1603?

QuickBooks error code 1603 is often caused when the Windows components required for the QuickBooks Desktop installation get damaged. Though, there can also be other reasons triggering it, such as:

  1. The third-party security programs are creating troubles for the QuickBooks Desktop installation.

You may like to read: QuickBooks Event id 4

What are the procedures to resolve QuickBooks error 1603?

Method 1) Repair the damaged Microsoft components using QuickBooks Install Diagnostic tool

  1. Download QuickBooks Tool Hub of the newly released version ( from Intuit’s website.
  2. Save the downloaded file (QuickBooksToolHub.exe) in such a place where you can get to it quickly.
  3. Run the QuickBooksToolHub.exe file.
  4. Act as per the instructions you see on-screen and then accept the terms & conditions to finish installing QuickBooks Tool Hub.
  5. Click twice the QuickBooks Tool Hub icon.
  6. Go to the Installation Issues panel given on the left bar.
  7. Tap the QuickBooks Install Diagnostic Tool option.
  8. When the tool repairs all the Windows components necessary for installing QuickBooks Desktop, restart your computer.
  9. Verify if you can install QuickBooks Desktop now.

If you still face QuickBooks error 1603, move on to the second method.

You may also see: QuickBooks Error 6000 77

Method 2) Install QuickBooks Desktop in the Windows Selective startup mode

  1. Select the Windows logo you see on the left end of the taskbar.
  2. In the search space, enter “Run” and then open Run.
  3. Enter “msconfig” in the search box of Run and then press the OK button.
  4. Go to the General tab.
  5. Choose the Selective startup option and then the Load system services option.
  6. Go to the Services tab.
  7. Then select the checkbox in front of Hiding all Microsoft Services.
  8. Press the Disable all button.
  9. Clear the checkbox in front of Hiding all Microsoft Services.
  10. Confirm the Windows Installer option is selected from the list of services. If it’s not, then select the option.
  11. Hit the OK button after that.
  12. When you see the Restart button on the System Configuration window, press it.
  13. Try to install QuickBooks Desktop and see whether you get any errors this time.

Do read this short article if you face QuickBooks Error 1904


After implementing the above troubleshooting solutions, if you still see QuickBooks error 1603, then the Windows operating system has been outdated for a long time. Hence, we recommend you update your Windows operating system. For additional troubleshooting help to fix this issue, don’t hesitate to contact our QuickBooks officials at +1-855-856-0042.

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