"Help! I logged in my Windows 8 PC via the built-in administrator account, but I couldn't open most of the metro apps. Could anybody tell me what I can do to solve the problem?"
Actually, the built-in Administrator account cannot open Metro apps except the Desktop app by default, as shown by the following screen shot. However, if you insist on enabling this account to open all the Metro apps, you can try the method illustrated by the steps below.
Video guide on how to allow built-in Administrator account to open Metro apps:
Step 1: Log in your computer using the built-in Administrator account.
Step 2: Access the Local Group Policy Editor.
Step 3: Find and open the Security Options folder.
For your information, it is located in Computer Configuration/Windows Settings/Security Settings/Local Policies.
Step 4: Locate and open the policy called "User Account Control: Admin Approval Mode for the Built-in Administrator account".
Step 5: Enable this policy by choosing Enabled and taping OK in its edit window.
Step 6: Restart your computer.
After these six procedures, you can open any Metro app when you log on to your PC via the built-in Administrator account.
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