The solution (assuming you have already uninstalled lync, or never had it) is to go through the registry and delete the two or three references to Lync_CoreFiles:
Note that the install log can be found %userprofile%\tracing\OCBoot.log and it is quite small and reads like plain english.
This appears to be an issue with Office 2013 installs. I have Office 2013 installed without Lync on Windows 8 AND Office 2013 installed WITH Lync 2013 on Windows 7. Even after an uninstall of Lync this error occured. I needed to clean the registry of the LYNC_COREFILES entries.
To give credit, where credit is due, I found http://community.office365.com/en-us/forums/166/p/65551/252428.aspx#252428 to be handy.
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