This just started yesterday. First the usual:
Windows 7 x64 Service pack 1
IE 9 version 9.0.8112.16421 64-bit edition
I had the Bing search bar, however yesterday I noticed it was missing. I tried uninstalling/reinstalling, no luck. I also tried the Yahoo toolbar, it was there at first but when I opened another IE it wasn’t there. I checked the Manage Add-On/Search Providers, right now the Yahoo is the default, yet it won’t show on the toolbar. I’ve also tried rebooting of course.
I just now downloaded and installed the Bing, went through all the Enabling part, and it opened with both the Yahoo and Bing search bars. I closed that, opened another, gone. When I right-click on the toolbar I notice that there’s the following, notice what’s missing:
Menu bar – checked
Favorites bar – checked
Command bar – not checked
Status bar – checked
Lock the toolbars – not checked
Show tabs on a separate row – checked
What happened to the Search bar? I think that’s the crux, something is disabling that on the IE. What registry or Windows Update could be affecting that?