Installed PU/CU on all farm servers but SharePoint thinks it's missing from one of application Server

Question

Recently I find one issue in my Central Admin, i.e "Product / patch installation or server upgrade required on one of our Application Server. Even I did run the PowerShell cmdlet Get-SPProduct -local and refreshed configuration wizard as per Blog but, Issue still existed and configuration wizard getting errors. Please advise me.

Thanks in Advance

Srinu Dasari.

Answer 1

After days of struggling, I found that Installer folder under C:\Windows directory is missing. So, here How I closed issue:

1. Create an empty folder under C:\Windows directory.

2. Copy files from C:\Windows\Installer folder from another working server to present server.

3. Restore-InstallerFiles.ps1 powershell downloaded by from Here

4. Run Restore-InstallerFiles.ps1 to installe missed installer files.

5. Run Get-SPProduct -Local from SharePoint PowerShell.

Now Missing/Required error disappeared and able to run Configuration Wizard without any issues.

Thanks For Everyone

Answer 2

This error usually pops up when you have not installed the patches in the right way.

Although it doesn't matter but I have always followed the practice of installing the patch on the Application server first(where CA is hosted) and then installing it in the remaining WFE servers and so on.

The best way to solve this issue would be to uninstall the installed patches and install the update again starting with the Application server.

Let me know if you are able to resolve the issue.