I have downloaded Lightroom 6 upgrade, three times. Each one I try to open I get the message: "The following disc could not be opened. Image data corrupted."
several time during download a network connection was lost.
kglad links in reply #1 here https://forums.adobe.com/thread/2081216 may help for a different download link
Also, When you ask a question you need to provide some basic information
-Forum quick start https://forums.adobe.com/docs/DOC-5601
Mac or Windows, and EXACTLY which version of the operating system?
Recent Mac AND Windows operating systems have been known to cause "odd" problems
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