“Installation failed. Missing or corrupted DxSetup.exe.”

Hello experts!
I am seeing this same error message once, perhaps twice in the 2or 3 months.
Also,I have a Missing or corrupted DxSetup.exe problem.
When I tried to install non-essential software programs this same DxSetup.exe error message occurred.
Message is: “Installation failed.
Missing or corrupted DxSetup.exe.” I chose to terminate the installation and delete then on-essential software program when the error message window popped up

Please help.
Thanks a lot.
