problom in downloading proteus8.

[tapu]

Dear all,
I want to download and install proteus8 in my PC.I downloaded proteus8 demo setup from labcenter electronics site (by my android mobile) and run set up in PC.then installation not succeeded & shows installer information
"Error writing to file:c/documents & settings/all users.windows.0/application data/lab center electronics/proteus8demonstration/samples/.../arduino using mcp23008 io expander and adafruit library-pin0 toggle.pdsprj.verify that you have access to that directory."

 

[pjmelect]

Try installing as the administrator, right click the Proteus EXE file and select run as administrator.