Hi
This is kind of a last resort.
I have been getting this error for a while on anything from Adobe or Apple that I try and install or uninstall.
I have searched the web and can not find any answer except for a lot of people trying to sell software that is supposed to get rid of this...
acrobat reader
adobe
apple
catalogs
error 1326
file security
installation
itunes
premiere elements
quicktime
software
system issues
technical support
troubleshooting
uac
uninstallation
updates
user permissions
windows errors