I have downloaded the 751MB three time, not a small feat, and when I try to install and it attempts to extract, I get the message seen in the attached file. BAsicall cannot extract. I have spent already about three hours on this.
I am sorry I did not include the basic information. I have a Win64 OS and am using Firefox 15.0.1 download. I tried to download form the LR "Updates" link and also the Adobe link.
Both did the same thing, I have 16gb ram
It should be worth noting that I have tried THREE times.