Installer Return Code 1783

Version 2



    The purpose of this document is to provide additional information and troubleshooting steps on the '1783' patch install return code.




    When deploying a patch the installer returns the status code '1783' or the patch install return code 1783 is seen within the CL5.log on the target machine. The CL5log file can be found by navigating to C:\Windows\ProPatches on the client machine.



    1955-11-05T06:15:00.7034616Z 1104 I CommandLine.cpp:2638 Patch Install returned 1783: Windows6.0-KB960859-x64.msu




    The 1783 return code translates to 'The stub received bad data'. This is typically indicative of an issue related to the Windows servicing store which can prevent the successful installation of OS patches, Service Packs, and additional software.




    Typically this issue can be resolved by running the Windows System Update Readiness Tool on the machine experiencing this issue. Links to the tool by OS can be found below.


    Windows Vista

    Windows 7 32-bit

    Windows 7 64-bit

    Windows Server 2008

    Windows Server 2008 R2


    Note: The diagnostic and repair functionality in the System Update Readiness Tool is built into the Operating System within Windows 8 and Windows Server 2012 machines. For additional information on running this tool using the OSs, please see the following link:


    Affected Product(s)


    Shavlik Protect 9.x