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Did you see QuickBooks error code 1646 and can’t find an ideal way to fix it? Well, QuickBooks Error 1646 is the kind of error that usually appears when the user tries to install QuickBooks Premier on a system that already has installed QuickBooks Premier version of the identical year. The prompt message of this error that usually displays on the screen is stated as:

QuickBooks Error code 1646

Moreover, there are several other reasons that could create such a blunder. So let us understand more about this error, its causes, and its relevant solutions. Make sure you read this article till the end. You can also connect with our Tech Support team for any sort of further QuickBooks-related guidance, by calling us at +1-844-499-6700.

What is QuickBooks Error 1646?

QuickBooks error 1646 shows up when you try to install the QuickBooks desktop premier version in the PC that already has QBs desktop pro version of that same year or when you try installing QuickBooks on the system, but it has a premier version installed in advance. This error shows up with a warning message that states: “Error 1646 installing quickbooks.msi uninstallation of the update package is not supported”. To understand this error better, make sure to read this segment carefully.

Possible causes of QuickBooks error 1646

The error code 1646 can be extremely irritating for QuickBooks users, as it abruptly ends the tasks. In order to fix this issue, it is essential to identify the causes. There can be a bunch of factors causing this issue, which include:

  • The temporary folder being used is full
  • Another reason can be if you are making use of an old version of Operating System
  • You can further come across this issue if the company file gets locked
  • Or if the installation procedure isn’t receiving permissions
  • You have installed Microsoft Net 1.1 SP1 inaccurately

See Also: How to resolve QuickBooks error code 15218?

How to identify QuickBooks Error 1646?

Usual Symptoms that you may notice with QuickBooks Error code 1646 are as follows:

  • The Company File may get locked can be the one reason.
  • Components like Microsoft C++ and MSXML may damage.
  • Using an outdated version of OS.
  • Inappropriate installation of Microsoft NET 1.1 SP1.
  • No permissions granted to installation process.
  • In case Temporary folders of Windows are full.

Fixes to QuickBooks Error Code 1646

In order to fix this error user can try following measures mentioned below.

Let us have a glance on each of these measures:

You may also see: How to Reinstall QuickBooks for Windows Using Clean Install?

STEP 1: Verify the information of the Product of QuickBooks Desktop software.

Under the process to rectify the error code 1646, you will first have to verify the product information in QuickBooks using the set of steps enumerated below:

  • At first, launch the QuickBooks Desktop Software.
  • Then tap on the F2 key on the keyboard. This will display the Product information window in front of you.
press F2 to see product information quickbooks software
  • In this window you will get all the required information regarding the Product.
  • Finally Note down all the information in details like license number and Product key.
  • Along with this, make sure to note down the version and year of the Product as well.

STEP 2: Uninstallation of QuickBooks Desktop Software.

Follow these simple steps to install the QuickBooks Desktop Software.

  • Go to the START menu and then head to Control panel by clicking on it or by typing control in the search box and open the Control panel by double clicking on it.
  • Next, Select Programs and Features option or you can also select uninstall a program by clicking on it.
uninstall using programs and features window
uninstall and reinstall quickbooks
  •  Finally Hit the Next button.

Read this also: How to Troubleshoot the QuickBooks Error Code 12157?

STEP 3: Rename the folders of the QuickBooks Desktop installation folders manually.

rename the quickbooks desktop installation

In this step you have to change the name of the QuickBooks Desktop installation folders which will reflect the hidden files after that change, for this you have to:

  • Right Click on the folder and add ‘.old’ in the end of the folder name.
  • This will prevent QuickBooks accessing the folder that is renamed before. As a result of this QuickBooks will make the new folder.

This is the most constructive way to eradicate this QuickBooks Error 1646, in case if it is unsuccessful in rectifying this error, Move on to the Final Step.

STEP 4: Reinstallation of QuickBooks Desktop Software.

re-install quickbooks desktop to resolve quickbooks error code 1646

When you are done with the above set of steps, try reinstalling QuickBooks software using the set of steps enumerated below:

  • At first, head to the start menu.
  • Now, look for the control tab and double click on the control panel.
  • Heading forward, click on the programs and features tab within the control panel window.
  • You now have to choose QuickBooks from the list of installed software.
  • Select Uninstall/change options and also click on uninstall.
  • Moving ahead, wait for the process to end.
  • And further reboot the software.
  • You will then be required to install QuickBooks and ascertain that you have the product and license keys in hand as they will be required at the time of installation.
  • Now, proceed with the steps ahead for installation and perform the onscreen instructions.
  • Moreover, launch QuickBooks and check if the issue is rectified.

STEP 5: Uninstall QuickBooks and manually rename the installation folders

  • Start the process by uninstalling QuickBooks.
  • Carry out the steps to display the hidden files.
  • Furthermore, open windows start menu and also look for the file explorer.
  • Open the same and you can open it by clicking on Windows + E.
  • You will then have to look for and open the folder that holds QuickBooks company files.
  • This will be the QuickBooks folder. You can find this in any of the paths enumerated below:
    • C:\ProgramData\Intuit\QuickBooks(year)
    • C:\Users(Current user)\AppData\Local\Intuit\QuickBooks(year)
    • C:\Program Files\Intuit\QuickBooks (year) 64-bit version
    • C:\Program Files (x86)\Intuit\QuickBooks (year)
  • Right click the folder and select rename tab.
  • You will then have to add the word old at the end of the folder name and this will prevent QuickBooks from trying to open it when you reinstall.
  • Conclude the procedure by reinstalling QuickBooks.
  • In case you are able to spot the error message when trying to rename, try continuing with the steps below:
    • Right click the windows taskbar and select task manager.
    • After the task manager opens, move to the processes tab.
    • Select the name column header to sort the list.
    • Select the following processes and end each of the processes including: QBDBMgrN.exe, QBDBMgr.exe, QBCFMonitorService.exe, Qbw32.exe.
    • End the process by selecting yes tab, if the error message states: Terminating a process can cause undesired results.
End QBW32.exe process - QuickBooks error code 1646

Don’t Skip This Article: How to Fix QuickBooks Desktop Update Errors?

Winding Up!

Well, after carrying out all the above-mentioned steps, if the QuickBooks Error Code 1646 still troubles you then without wasting your much time we would highly recommend you to contact our dedicated team of QuickBooks Customer support Number at +1-844-521-0490 who would provide you the support services in a least possible time to fix this issue.

Read More Helpful Article Here:

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FAQs – QuickBooks error code 1646

What is QuickBooks error 1646?

QuickBooks error code 1646 can often be encountered when you try to install the updates for QuickBooks. This error can be seen with a warning message that states: Error 1646 installing QuickBooks.msi uninstallation of the update package is not supported.

What causes QuickBooks error 1646?

A few common reasons behind the occurrence of such an error are as follows:
1. Damaged QuickBooks company file
2. Windows temporary folder is full
3. Outdated QuickBooks version is being used
4. Microsoft NET 1.1 SP1 installer is installed inappropriately

How do I fix QuickBooks error 1646?

You can try fixing the error using the steps below:
1. Updating QuickBooks and windows to latest release
2. Renaming the installation folders
3. Uninstall and reinstalling QuickBooks

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