Extraction failed access denied

Hi,

i have SQL Server express 2008 R2 running. Now i wanted to install advanced services like SSRS. So downloaded SQLEXPRADV_x86_ENU.exe file.
When i try to install the same I get error "Access Denied" during extraction of Autorun.inf file. I updated local security rights as advised in KB2000257. But still issue remains the same.

Please help