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Error 1935 when you try to install Microsoft Office

• Article
• 05/05/2022
• Applies to: Microsoft Office 2016, Microsoft Office 2013, Microsoft Office Access 2007, Microsoft Office Excel 2007, Microsoft Office InfoPath 2007, Microsoft Office Outlook 2007, Microsoft Office PowerPoint 2007, Microsoft Office Publisher 2007, Microsoft Office Visio Professional 2007, Microsoft Office Visio Standard 2007, Office Professional Academic 2010, Office Home and Business 2010, Office Home and Student 2010, IIS Media Services 2.0, Office Professional 2010, Office Professional Plus 2010, Office Professional Plus 2010 Home Use Program, Office Standard 2010, Office Starter 2010

In this article

If you see "Error 1935. An error occurred during the installation of assembly component" when you install Office 2010 or 2007 or one of the Office stand-alone products like Excel, restart the computer and try to run setup again as a quick first step.

If the error still appears after restarting the computer, try these other methods to fix the problem.

Delete the APPMODEL registry subkey

Deleting the HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\APPMODEL subkey should allow you to install Office.

Warning

Serious problems might occur if you modify the registry incorrectly. These problems could cause you to have to reinstall the operating system or even prevent your computer from starting. Microsoft can't guarantee that these problems can be solved. Before you modify it, back up the registry for restoration in case problems occur. Modify the registry at your own risk.

1. Select Start, type regedit and press Enter, then select Registry Editor from the search results.
2. Navigate to the HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\APPMODEL subkey.
3. Right-click the subkey, and then select Delete.
4. Select Yes to confirm the deletion.

Restart the device and then try installing Office again. If you still get the error, try the next method.

Important

The System Update Readiness tool can only be used on Windows 7 or Windows Vista operating systems. If you're using a different version of Windows, try one of the other methods in this article.

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

• Download for the 32-bit version of Windows 7
• Download for the 64-bit version of Windows 7
• Download for the 32-bit version of Windows Vista
• Download for the 64-bit version of Windows Vista

Repair or update Microsoft .NET Framework components

First, check installed programs to see if the latest version of .NET Framework is installed:

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

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

1. Close all applications.
2. Click Start.
3. Type appwiz.cpl, and then press Enter.
4. Click Microsoft .NET Framework 4 Client Profile, and then select Uninstall/Change.
   
5. Choose the option to Repair .NET Framework 4 Client Profile to its original state, and then select Next.
   
6. When the repair is complete, select Finish, and then select Restart Now to restart the computer.

If you can't find Microsoft .NET Framework 4 Client Profile, download and install Microsoft .NET Framework 4 (Web Installer) to update the computer.

Need More Help?

Get help from the Microsoft Community online community, search for more information on Microsoft Support or Office Help and How To, or learn more about Assisted Support options.

More Information

If error 1935 happens when you install Office 2010 Service Pack 1 (SP1), follow the steps in Description of Office 2010 update: September 13, 2011.

You may experience error 1935 when you install Office 2010 Service Pack 2 (SP2). As Office 2010 includes .NET Programmability Support, this issue may be caused by the interference between Windows Installer (msiexec.exe) and Windows Search (SearchIndexer.exe) or another module in the assembly file copy process. This issue may also occur when you apply other updates, for example, a hotfix for Microsoft .NET Framework components. To work around this issue, use one of the following methods:

• Method 1: Retry installation of Office 2010 SP2

Method 2: Stop Windows Search Service, and apply Office 2010 SP2

To stop Windows Search Service, follow these steps:

Click Start, type services.msc in the Search programs and files text box, and then click services.msc in the search results.