> ## Documentation Index
> Fetch the complete documentation index at: https://docs.conductor.is/llms.txt
> Use this file to discover all available pages before exploring further.

# Ensuring only one version of QuickBooks Desktop is installed

> Conductor will not function properly if multiple versions of QuickBooks Desktop are installed on the same computer.

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<Info>
  This guide is provided by Conductor, the service that powers the QuickBooks
  Desktop integration for many business tools, including the one that sent you
  here.
</Info>

Having multiple versions of QuickBooks Desktop installed on the same computer can cause issues with Conductor. Often, this prevents the QuickBooks Web Connector from connecting to QuickBooks Desktop or causes it to crash. Please follow the steps below to ensure only one version of QuickBooks Desktop is installed on your computer.

<Steps>
  <Step title="Open the Windows Control Panel">
    Using Windows search (usually located in the bottom-left corner of your screen), search for "Control Panel", and open it.
  </Step>

  <Step title="Click on Programs and Features">
    In the Control Panel, click on "**Programs and Features**" or "**Uninstall a program**" (exact wording may vary depending on your version of Windows).
  </Step>

  <Step title="Check for multiple versions of QuickBooks Desktop">
    In the list of installed programs, look for any versions of QuickBooks Desktop. If you see multiple versions, such as in the example below, continue to the next step. If you only see one version, you can stop here.

    <Image src="/images/help/guides/ensure-only-one-version-installed/multiple-versions-installed.jpg" alt="Multiple versions of QuickBooks Desktop installed" width={550} noShadow />
  </Step>

  <Step title="Close QuickBooks Desktop">
    Before uninstalling any versions of QuickBooks Desktop, make sure QuickBooks Desktop is completely closed.
  </Step>

  <Step title="Uninstall the older version(s) of QuickBooks Desktop">
    Back in the Control Panel window, right-click on the older version(s) of QuickBooks Desktop in the list of installed programs and click "**Uninstall**". Follow the prompts to uninstall the program. For example:

    <Image src="/images/help/guides/ensure-only-one-version-installed/uninstall-old-quickbooks-desktop.jpg" alt="Uninstall older version of QuickBooks Desktop" width={550} noShadow />
  </Step>

  <Step title="Reopen QuickBooks Desktop">
    After uninstalling the older version(s), reopen QuickBooks Desktop and follow any prompts for updates.

    1. If QuickBooks Desktop asks you to fix the installation, click "**Continue**".

           <Image src="/images/help/guides/ensure-only-one-version-installed/fix-quickbooks-desktop-after-uninstalling-old-version.jpg" alt="Fix QuickBooks Desktop after uninstalling old version" width={500} noShadow />

    2. If QuickBooks Desktop asks you to reboot after fixing the installation, click "**OK**".

           <Image src="/images/help/guides/ensure-only-one-version-installed/reboot-required-after-fixing-quickbooks-desktop.jpg" alt="Reboot required after fixing QuickBooks Desktop" width={400} noShadow />
  </Step>
</Steps>

By following these steps, you can ensure only one version of QuickBooks Desktop is installed on your computer, which will help prevent issues with Conductor.