I'm running Win 7 64 bit and my (clean install) Photoshop CS5 upgrade won't install without having the following warnings:
--------------- Summary ---------------
- 0 fatal error(s), 4 error(s), 2 warning(s)
WARNING: OS requirements not met for {667C8B6C-3EAF-4646-A8EC-D85CCC4D3D84}
WARNING: OS requirements not met for {7DFEBBA4-81E1-425B-BBAA-06E9E5BBD97E}
ERROR: The following payload errors were found during install:
ERROR: - Adobe Media Player: Install failed
ERROR: - AdobeHelp: Install failed
ERROR: - Adobe AIR: Install failed
---------------
I've tried several times and have all virus checking, script checking, etc turned off. PS and Bridge 64 bit seem to run fine.
). It looks like Adobe is having enough CS5 installation problems that they've now created a web page dedicated to it:
