The signature of fcsdownload.exe is invalid or corrupt

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You may receive an error saying that the signature of the product download.exe is invalid or corrupt.  There is not an issue with the install file itself.  

Below are several ways to resolve this error message.

UAC settings are important for the security of your computer system. Disabling UAC should be a last step taken after most other resolutions have been attempted. If you do disable UAC, remember to enable it after the download has completed.

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