If you can't see Bing Bar in Windows Internet Explorer after you install it, make sure you didn't open Internet Explorer and choose Run as administrator. Bing Bar won't open in Internet Explorer windows that are opened with an administrator account.
If you're not running Internet Explorer as an administrator, do one of the following.
Turn on Bing Bar in Internet Explorer 8
In the upper-right corner of Internet Explorer, click Tools , and then click Toolbars.
In the expanded list of options, click Bing Bar.
Turn on Bing Bar in Internet Explorer 9
In the upper-right corner of Internet Explorer, click Tools , and then click Manage add-ons.
In the left pane, click Toolbars and Extensions.
In the right pane in the Status column, check the Bing Bar status.
If the status is Disabled, click Enable.
If the status is already set to Enabled, do this:
Bing Bar doesn’t appear after you turn it on in Internet Explorer 8 or 9
On the Internet Explorer menu bar, click View.
If you can't see the View menu, press ALT to show the menu bar.
Point to Toolbars, and then click Bing Bar.