Hi All

I've downloaded BitLocker Reader To Go from Microsoft and trying to install it on machines to try and test it to see if it works etc.

When I go to open up the installer (KB970401) I get the following error:

Windows Update Standalone Installer
Installer encountered an error: 0x80096002
The certificate for the signer of the message is invalid or not found.

I've tried this on a Windows 8.1 Pro machine and also a Windows 7 machine

Any ideas on how to fix this?