This error is reported when msiexec.exe file is being used another application. msiexec.exe is a Windows Installer Component used to install new programs that use Windows Installer package files (MSI).
Resolution
There are a few options to resolve this issue. First wait for any existing installation process to complete.
If no other installations are in progress:
The safest way to end any running processes that may be stuck is to restart the computer.
If you do not wish to restart the computer, you can do the following. Open Task Manager, switch to Processes tab
Right-click on msiexec.exe process and select End All Processes. WARNING: This may crash running applications.