Problem

While trying to install patches using SCCM you get an error "%1 is not a valid win32 application."

Cause

You might get this error due to one of the following reasons:

1. Incomplete patch download from SCCM server's Distribution points to the clients
2. Downloaded file is corrupted.

Resolution

Open Command Promt with administrator privileges and execute the following commands

1. Stop Windows update service using this command - net stop wuauser
2. Remove "SoftwareDistribution" folder from the client computers using this command - rd C:\windows\SoftwareDistribution /S /Q
3. Start Windows update service using this command - net start wuauserv
4. To reinstall the third party updates follow the below steps in the client machine,
   • Open Control panel
   • In the view by option select small icons

   • Select Configuration manager and the configuration properties diolog box will open

     

   • Under Action tab select Software Update Scan Cycle and click Run Now

     

   • Under Action tab select Update Deployment Eveluation Cycle and click Run Now

     

In case if this problem continues, kindly Contact Support

Keywords: Third-party Patch Management, Publish Patches, Download Patches