How to Hide the Action Center Notification Icon in Windows 7
In the notification area of the Windows taskbar, click the Up arrow to the left of the Action Center icon.
The notification area appears at the right end of the Windows taskbar. The Action Center icon appears as a white flag.
Click Customize in the pop-up window that appears.
The Notification Area Icons window appears.
Choose Show Icon and Notifications, Hide Icon and Notifications, or Only Show Notifications, and then click OK.
The window closes.