My first suggestion would be to back up everything, then replace the hard drive and reinstall the OS and all your programs, but I'm a Windows guy.
What version of ID are we talking about here?
had to download the whole cs6 suite from
whole 4.5 gigs.
the installer included allowed me to install the programs missing from the suite (InDesign )
Installed as expected. Now testing if all features work.
deleted a zero size of a leftover working file just in case.
The /Library/Logs/Adobe/Installers for CS6 220.127.116.119 shows among many cryptic messages
0 fatal error(s), 34 error(s), 1 warning(s)
and finished with
Exit Code: 6 - Silent workflow completed with errors.
Please see specific errors and warnings for troubleshooting. For example, ERROR: DS003, DW023 ... WARNING: DF012
Does it work?