Q: Error 1395. An error occurred during the installation of assembly component. while installing CAD program. This thread is locked from future replies

I am running Windows 7 64bit SP1. When attempting to install a CAD program I get the above message and the following code:

{303994BA-6487-47AE-AF1D-7AF6088EEBDB}. HRESULT:  0X80070003

I have followed these instructions from supplied by Imran Chand on September 2 2011 in answer to a similar question:


If you receive a 1935 error when you try to install software, the Windows file system transaction log has become corrupted. The transaction log is used by the Windows file system to recover when a file error occurs. It can also happen if there is an error with the installation of .Net Framework.

Step 1: To correct this install error, you need to clear the log.

a.    Open an Administrator command prompt: Right-click Start > All Programs > Accessories > Command Prompt and select "Run as Administrator" and click "Allow" for the elevation prompt

b.    In the command prompt, type the command below:

fsutil resource setautoreset true C:\

c.    This assumes that C: is the drive in which Windows 7 is installed. If it is installed on another drive like D:  please change the drive letter appropriately.

d.    Reboot the system.

e.    Install the software and check.

Step 2: Start the Trustedinstaller Service. It is possible that the service Trustedinstaller do not appear in service list. So you should change the register value to "active" in the system register.

To do this, you should:

a.       Type 'regedit' without the quotes in the start search box.

b.      In the Registry Editor window, navigate to HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control.

c.       In the 'Registry Editor' dialog box, double-click on 'RegistrySizeLimit'. This opens the 'EditDWORD Value' dialog box.

d.      In the 'Edit DWORD Value' dialog box, enter ffffffff as the 'Hexadecimal' value. Click on the 'Decimal' radio button, and enter 4294967295 as the 'Decimal' value. Click OK.

e.      Reboot the machine.

f.        Log in as an Administrator and open a Command Prompt and type SFC /SCANNOW.

After the process is completed, re-install the program which showed you problems to install.

Important:  This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following link:

Step 3: Repair .net framework and check.

Repair the Microsoft .NET Framework installation

To do this, follow these steps:

a.    Click Start, click Control Panel, and then click Add or Remove Programs.

b.    In the Currently installed programs list, click Microsoft .NET Framework, and then click Change/Remove.

c.    Click Repair, and then click Next.

The above did not fix the problem. Any other ideas?


1. Which Autocad program are you trying to install?

2. Have you made any changes on the computer prior to the issue?

This problem occurs because of certain third-party programs and background programs that are running on the computer

I would have you place the computer in a clean boot and attempt to install the Autocad program.

How to perform a clean boot in Windows
Note: After troubleshooting, refer to this section "How to reset the computer to start normally after clean boot troubleshooting"


Hope this helps to resolve the issue. Please revert for any clarification on this or any Windows issue. We will be glad to help you.

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Views: 476 Last updated: March 14, 2018 Applies to: