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JAVA 1330 Error and Fix

JAVA 1330 Error invalid Digital signature

You try and install any version of JAVA on VISTA and your receive:

Error 1330. A File that is required cannot be installed because the cabinet file <path to file> has an invalid digital signature. This may indicate that the cabinet file is corrupt.

This is caused, most of the time, by the computers inability to verify the certificate used to sign the CAB file due to a missing root certificate

This can be fixed by running the Microsoft root certificate update (rootsupd.exe) and can be found here.

http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/rootsupd.exe

After running this you should be able to install JAVA just fine

If you ant to verify that this is the problem before you install the roots you can ->

Right click on the Data1.cab file and select properties. On the Digital Signatures Tab select the signature and click details. If you see a red X and “The certificate in the signature cannot be verified” then the root certificate is missing.

The missing root is one of the VeriSign Certificates, you could just install the missing root vice the Microsoft update but finding the right one can take some time.

After the root certificate is install you can check the Digital Signature again.

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