SCCM Configmgr 2012 ccmsetup installation failed Error Exitcode 1638

Had a problem with sccm 2012 client installation today,it keeps generating error code 1638 from ccmsetup.log .

File C:\Windows\ccmsetup\{181D79D7-1115-4D96-8E9B-5833DF92FBB4}\client.msi installation failed. Error text: ExitCode: 1638

Use ctrl+L to find the error code description for 1638, it says “Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel”

I tried uninstalling the client using ccmsetup.exe /uninstall,also tried with ccmclean.exe  before reinstalling client but that doesn't help.

It seems like,the previously installed client was either partially installed and it cannot continue further to install .

I also checked if there is any configuration manager applet from control panel,there is nothing as such.

So what next ? why does it says,another version of this product already installed ?

If you have any such type of problems with removal of any partially installed or removed, use MSI Clean Up Utility that will help you to remove the hidden products completely.

Download MSI Clean Up Utility from http://technet.microsoft.com/en-us/magazine/2008.08.utilityspotlight.aspx.

Run the application with administrative rights on the problem computer.

Open the application (windows Installer Clean up) and identify Configuration manager client ,click remove.

Now try installing the Client,it should go smoothly without any issues.

Hope it helps !