Message id:1603 An error occurred during installation. Perform the following steps because you previously installed Silverlight, did not install successfully, or did not completely uninstall cleanly, leaving some files, especially when the installation suddenly interrupted when the problem occurs. Workaround: Remove the c:\windows\installer\{89f4137d-6c26-4a84-bdb8-2e5a4bb71e00} file and reinstall it. Then cmd runs reg delete HK
Message id:1603
An error occurred during the installation. Follow these steps
The reason is that you have previously installed Silverlight, did not install successfully or did not completely uninstall cleanly, left some files, especially when the installation suddenly interrupted when this problem occurs.
Workaround:
Will
c:\windows\installer\{89f4137d-6c26-4a84-bdb8-2e5a4bb71e00} files are removed and reinstalled.
Then CMD runs
Reg delete hklm\software\microsoft\silverlight/f
RMDIR/S/q "%ProgramFiles%\Microsoft Silverlight
Close browser
Reboot the machine at install Silverlight .... Problem solving ...
Silverlight installation failure prompt message ID 1603 workaround