Adobe Flash CS4 cannot be installed (Creative Suite 4 Master Collection)

I am trying to install cs4 with flash. I have tried it 3 times:
1. just installing flash
2. updating cs4 incl. flah
3. deinstall-install cs4 master collection completely

Each time I get this error:

Error:
Error 1603. Error 1305.Error reading from file C:\Program Files (x86)\Adobe\Adobe Flash CS4\JVM\lib\rt.jar. Verify that the file exists and that you can access it.

Any idea how to fix it?