I want to modify a file in vista ( C:\Windows\System32\drivers\etc\hosts ) but I can't write it to disk.
Similar thing happen with other files that are not under my user directory. C:\Users\me
I am in the administrator group.
What is needed to edit these files?
With UAC turned on, you're not running as an administrator normally. That's why you can't edit it. The simplest thing to do is to right-mouse click notepad and choose "run as administrator". You'll be prompted with a UAC prompt. You should then be able to edit and save the file.