Mac OS X Update 10.7.5 failed download

Hello,

When I try and download the Mac OS X Update 10.7.5, the following error message occurs: "The update could not be expanded, and may have been corrupted during downloading. The update will be downloaded and checked again the next time that Software Update runs."

When I restart it and try to update it again, the same thing happens.

It also freezes when I try and download the update as well.

Any thoughts?

Thanks