IE安全级别没法定制

进入IE选项，安全标签，发现自定义级别是灰色的。

• Click Start, Run and type REGEDIT.
• Navigate to :

HKEY_CURRENT_USER \ Software \ Policies \ Microsoft \ Internet Explorer \ Control Panel

and

HKEY_LOCAL_MACHINE \ Software\ Policies \ Microsoft \ Internet Explorer \ Control Panel

• Backup the keys by exporting it to REG file.
• In the right-pane, select the SecChangeSettings value and delete it.
• Then, navigate to the following location:

HKEY_LOCAL_MACHINE \ SOFTWARE \ Policies \ Microsoft \ Windows \ CurrentVersion \ Internet Settings

• In the right-pane, select the Security_options_edit value and delete it, or change its value to 0.
• Close Registry Editor.