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Manually fix Microsoft .NET Framework errors

SOLVEDby QuickBooksUpdated December 22, 2022

Learn how to fix .NET Framework issues when using QuickBooks Desktop.

QuickBooks Desktop uses Microsoft programs to run web-based apps. One of them is Microsoft .NET Framework. If .NET Framework has an issue, QuickBooks may not work properly.

Windows 10 and newer

  1. Close all open programs.
  2. Open the Windows Start menu.
  3. Type "Control Panel" into the search and open Control Panel.
  4. Go to Programs and Features.
  5. Select Uninstall a Program. Don't worry, you aren't uninstalling anything.
  6. Select Turn Windows features on or off.
  7. Find .NET Framework on the list.

Check the settings for both .NET Framework 4.5 (or later) and .NET Framework 3.5 SP1.

Note: The steps to fix .NET. Framework 4.5, 4.6, 4.7, and 4.8 are the same.

Check NET Framework 4.5 (or later)

If the .NET Framework 4.5 (or later) checkbox isn't checked:

  1. Select the checkbox to turn on .NET Framework 4.5 (or later).
  2. Select OK to save your changes.
  3. Restart your computer.

If the .NET Framework 4.5 (or later) checkbox is already checked:

  1. Select the checkbox to turn off .NET Framework 4.5 (or later). Don't turn it back on.
  2. Select OK to save your changes.
  3. Restart your computer.
  4. When you're signed in back into Windows, follow the steps to turn on .NET Framework 4.5 again.

Check NET Framework 3.5 SP1

If the .NET Framework 3.5 SP1 checkbox isn't checked:

  1. Select the checkbox to turn on .NET Framework 3.5 SP1.
  2. Select OK to save your changes.
  3. Restart your computer.

If the .NET Framework 3.5 SP1 checkbox is already checked:

  1. Select the checkbox to turn off .NET Framework 3.5 SP1. Don't turn it back on.
  2. Select OK to save your changes.
  3. Restart your computer.
  4. When you're signed in back into Windows, follow the steps to turn .NET Framework 3.5 SP1 on again.

If you see an error when turning .NET Framework on or off, reach out to an IT professional or Microsoft. The issue may be related to your operating system, not QuickBooks.

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