Hi funyi,
We actually had this reported recently. I'd like to get some info from you, to pass on to the appropriate folks here to solve this issue.
- What is the OS version (win/mac and version number)?
- How much space does your system have?
- Did you elect to have third party offers installed when you downloaded the installer?
The standalone, offline, installer does not have this issue. You can download the offline installer from the link at the bottom of this page Installation problems | Flash Player | Mac.
Thank you.
--
Maria