Error 1935 An error occurred during the installation of assembly component

This article explains how to Fix Error 1935 when you try to install Microsoft Office. The likely cause of this Office 2010 error is a .NET Framework incompatibility. To fix Office 1935 Error you need to install .NET framework in your system or repair .NET installation of the PC. You may see “Error 1935 An error occurred during the installation of assembly component” when you install Office 2013, 2010 or 2007 or one of the Office stand-alone products like Excel.

Error 1935 An error occurred during the installation of assembly component

Quick Note : Before making any changes in your computer, I suggest you to create a System Restore point  so that you can restore back your computer to previous working stat if something goes wrong.

Fix Error 1935 An error occurred during the installation of assembly component

Step 1: Run the System Update Readiness tool

IMPORTANT The System Update Readiness tool can only be used on Windows 7 or Windows Vista operating systems or later Windows Operating system, If you have Windows XP, try one of the other methods in this article.

Select and download the System Update Readiness tool for your version of Windows:

For more information about the System Update Readiness tool and links to download versions for Windows Server operating systems, read What is the System Update Readiness Tool?

Step 2: Repair or update Microsoft .NET Framework components

Method 1:

First, check installed programs to see if the latest version of .NET Framework is installed. To do this, follow these steps:

  1. Click Start (or Start > Run in Windows XP).
  2. Type appwiz.cpl, and then press Enter.
  3. Look for Microsoft .NET Framework 4 Client Profile in the list of installed programs.

Error 1935

4. If you find Microsoft .NET Framework 4 Client Profile, follow these steps to repair it:

Note: If you can’t find Microsoft .NET Framework 4 Client Profile, download and install it to update the computer. Follow step 6 to download and install it.

  1. Close all applications.
  2. Click Start (or Start > Run in Windows XP).
  3. Type appwiz.cpl, and then press Enter.
  4. Click Microsoft .NET Framework 4 Client Profile and click Uninstall/Change (or Change/Remove in Windows XP).

Error 1935 An error occurred during the installation of assembly component

5. Choose the option to Repair .NET Framework 4 Client Profile to its original state,     and then click Next.

Error 1935 An error occurred during the installation of assembly component

6. When the repair is complete, click Finish, and then click Restart Now to restart the computer.

Method 2:

Note: The current version of the tool supports repairing the .NET Framework 4.5.1, 4.5, 4 and 3.5 SP1 (includes .NET 3.0 SP2 and .NET 2.0 SP2).

  •  You can download .NET Framework repair tool from this link.

Step 3: If you can’t find Microsoft .NET Framework 4 Client Profile, download and install it to update the computer. You can download the file from this link Microsoft .NET Framework 4 (Web Installer)

Step 4: Try to install Microsoft Office again. If error 1935 continues to occur, follow the steps to uninstall and reinstall .NET Framework from the computer.Uninstall and reinstall Microsoft .NET Framework components

IMPORTANT The .NET Framework Setup Cleanup Utility provided here should only be used only after you’ve tried the previous options.

To uninstall .NET Framework components from the computer follow these steps:

  1. Create a temporary folder on your desktop.
  2. Visit the .NET Framework Cleanup Tool User’s Guide blog and download the dotnetfx_cleanup_tool.zip file.
  3. When prompted, click Open, and then click Extract Now. Extract the files to the folder you created.
  4. Find cleanup_tool.exe in the folder you created and double-click it.
  5. In the “Do you want to run the .NET Framework Setup Cleanup Utility?” message, click Yes.
  6. Click Yes to accept the license agreement.
  7. In the Product to cleanup window, choose a .NET Framework version that you want to remove.Note You can’t remove .NET Framework versions that are part of the Windows operating system. If you have Windows 7, you can’t remove .NET Framework versions 3.5 or lower. If you have Windows Vista, you can’t remove .NET Framework versions 3.0 or lower. If you have Windows XP, you can’t remove .NET Framework versions 2.0 or lower.
  8. Click Cleanup Now.
  9. Restart the computer once the .NET Framework component is removed.
  10. Download and install the following components, one at a time, based on your operating system:
  11. Restart the computer, and run Windows Update to install updates.

For other office installation errors visit this link:

Conclusion:
Hope this guide helped you to fix the issues. As I said above  The likely cause of this Office 2010 error is a .NET Framework incompatibility. You can completely cleanup and reinstall .NET Framework to make fix Error 1935 when you try to install Microsoft Office in you computer.  Let us know your thought in comments.