Running as an Administrator in Vista Home Premium 32 bit, I am unable to upgrade Reader 9.0 due to the above message during installation of Reader 10 (Run as Administrator). When I check the properties of the 1.0 file folder I get "Unable to display current owner." and I can not change the owner to change the access to allow an upgrade. I have tried dropping down to DOS and changing the attributes without success. I can not delete this file folder from DOS or Vista in order to install a Reader update. Other tricks like renaming or moving it to another file folder are also met with "You do not have sufficient privileges". How do I get around this problem short of invoking Debug, prying the magnetic bits off of the hard drive with my teeth, or firing up a blow torch? (I'm out of liquid nitrogen but I do have a hammer.)
This folder contains an essential files used to update Acrobat or Reader
Acrobat or Reader installers do not set special permissions on this folder (or it's parents)
I can think of two reasons for this issue
1. You have antivirus program that keeps this folder locked for some reason.
2. Your system is infected with actual virus