Error 1330. Cabinet file data1.cab has an invalid digital signature.
This article applies to:
When trying to install a new version of Java or trying to upgrade the latest version of Java from Java.com, a message box pops up with error message similar to:
Error 1330. A file that is required cannot be installed because the cabinet file C:........\Java\jre1.6.0_13\Data.cab has an invalid digital signature. This may indicate the file is corrupt.
This could possibly be caused by a problem with the Java installer, or a bad server connection. It is also possible that the digital signature of the Data1.cab file got corrupted during the download process.