One of Windows 8's selling points is its ability to handle multiple users. However, when you add users to your Windows 8 device, by default they aren't given permission to install desktop software on their own. Though they can install Windows 8 Metro-style apps to their heart's content, secondary users are asked for an administrator's password as soon as they launch a desktop installer.
Even after an administrator enters his or her password, Windows 8 installs the program but, in our experience, fails to put a shortcut on the secondary user's desktop, on the Start screen or on the All Apps menu. The only way for the secondary user to launch his new app is to find its .exe file in the Program Files folder and create a shortcut from that. Don't try that at home.
Fortunately, it's fairly easy to grant administrative privileges to a secondary user, provided that you know which menu to use. After adding a user in the PC settings menu, go into the desktop control panel and click Manage Another Account, select the name of the new account and then click Change Account Type and select Administrator from the menu.