On windows 7 admin can't change environment variables and virtual memory,etc

I was able to fix this by selecting a specific search result from the Start Menu.

Instructions:

1. Click Start button
2. Type "path"
3. Select "Edit the system environment variables" (most likely the second Start menu search result)
4. Click "Environment Variables..." button
5. That's it!

If you choose "Edit environment variables for your account" from the Start menu search results instead, you will only be able to edit environment variables for your account.