Make sure your download the USB Serial Software Development Kit first from here: http://www.cypress.com/documentation/development-kitsboards/psoc-4-cy8ckit-049-4xxx-prototyping-kits
After installation, then proceed to download the complete setup (CY8CKIT-049-42xx Kit Setup) from the same page
Thank you for the prompt reply
I get a error after I did as you instructed with the same filename when I did it as you said, maybe I missed a install file?
Seems like you have a corrupted .dll system file. Please open the command prompt as administrator and type "sfc/scannow". The "sfc /scannow" command will scan all protected system files, and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir%\System32\dllcache.
In your case there would be some violations and it will undergo the replacement process.
Here's a link which lists some ways to get the files repaired, please try them to get it fixed: https://support.microsoft.com/en-us/help/929833/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system
Once this is fixed, the installation should work successfully.