Follow This Guide to Troubleshoot QuickBooks Error 1646

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3 min read

QuickBooks is the best bookkeeping software for precise tax calculations and reliable accounting. It serves as a comprehensive benchmark of the most recent services, features, security updates, and fixes. To continue with QuickBooks, you must have to keep it updated. But when doing so, QuickBooks error 1646 with an error message “Error 1646 installing quickbooks.msi uninstallation of the update package is not unsupported.

Error code 1646 mainly occurs due to damaged or incomplete installation of QB. Now, you must be wondering how you will fix this error quickly. Don't worry; below, we are discussing all the possible reasons why this error appeared with the suitable fixes; ensure to follow this blog until the end.

Rather than trying to fix this error by yourself, do you want to hand it over to the QB experts? If so, dial 855-955-1942to connect with QB experts and talk to them about the issues you are facing

What Causes Install Error 1646 in QuickBooks?

Here’s a list of possible reasons you can’t install QuickBooks and are experiencing error 1646. Read the pointers below to become familiar with them.

Use These Solutions to Troubleshoot Update Error 1646 in QB

Below, we have mentioned some suitable fixes you should follow to fix error 1646; ensure you follow each solution with extreme care.

Solution 1: Update the Windows Operating System

Here’s how to update the Windows operating system to its latest version.

  • Open the Windows Start menu and type ‘Settings’ in the search bar.

  • Click ‘open’ and go to the ‘Windows Update’ menu.

  • Select 'Check for updates’ from the right side of your screen.’

  • If updates are available, click ‘Download.’

  • Once downloaded, install these updates.

Solution 2: Fix the Windows Components Using Install Diagnostic Tool

The QB install diagnostic tool helps fix the issues during the software installation. It also fixes the damaged Windows components to ensure you can update or install QB without any issues.

  • Go to Intuit’s official site and look for the option to download the tool hub.

  • Now, get the tool hub in its latest version (1.6.0.3) and save the download in an accessible location.

  • Go to this location and double-tap on the recently downloaded file (QuickBooksToolHub.exe).

  • Follow the on-screen instructions to start the installation and agree to the terms and conditions.

  • When the installation is done, go to the home screen of your computer and double-click the tool hub icon by double-clicking it.

  • Select the ‘Installation Issues’ menu and select ‘QuickBooks Install Diagnostic Tool.’

  • Let the tool run until it fixes the installation issues.

  • When done, try to update your QuickBooks again.

Solution 3: Clear the Temporary Folder Storage

If the temp folder on your computer is full, you won’t be able to download or update software on your computer. Let’s clean up the space on your computer by clearing the temp folder.

Open the ‘Run Command’ by tapping the Windows + R keys together.

  • Type ‘temp’ in the open field and press ‘Enter.’ it will open the ‘temp’ folder.

  • Now, select all these temp files and click the ‘Delete’ icon to remove them.

  • When done, restart your computer and try again to update QuickBooks.

After following the solutions mentioned in this guide, you must be able to troubleshoot ‘QuickBooks error 1646.’ However, if this error persists or for any related issues, dial 855-955-1942 to connect with QB experts and consult the issues you face.