Bing Bar is available for Windows XP, Windows Vista, Windows 7, Windows 8, and Windows 8.1

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How to obtain the latest version of Bing Bar

You can download and install Bing Bar by using Windows Update. For more information about how to download and install Bing Bar by using Windows Update, go to the "How to install Bing Bar by using Windows Update" section in this Microsoft Knowledge Base (KB) article.

You can also download the latest version of Bing Bar from the following Microsoft website:

How to install Bing Bar by using Windows Update

To install Bing Bar in Windows XP, follow these steps:

1. Click Start, click All Programs, and then click Windows Update.
2. Wait for Windows Update to search for updates.
3. Click Custom.
4. Click Software, Optional on the left side panel.
5. Select Bing Bar on the right side panel, and then click Review and install updates.
6. Click Install Updates.
7. After the update is installed, restart Windows Internet Explorer. 

To install Bing Bar in Windows Vista and Windows 7, follow these steps:

1. Click Start, click All Programs, and then click Windows Update.
2. Click Check online for updates from Microsoft Update.
3. Click the number optional updates are available link.
   Note The placeholder number represents the number of optional updates that are available to download.
4. Under the Bing category, select Bing Bar.
5. Click OK, and then click Install updates to start the download and installation process.

To install Bing Bar in Windows 8 and in Windows 8.1, follow these steps: 

1. Swipe in from the right edge of the screen, and then tap Search.
   Note If you are using a mouse, point to the lower-right corner of the screen, then click Search.
2. Type Windows Update in the search box, tap or click Settings, and then tap or click Install optional updates.
3. Click Check online for updates from Microsoft Update.
4. Click the number optional updates are available link.
   Note The placeholder number represents the number of optional updates that are available to download.
5. Under the Bing category, select Bing Bar.
6. Click OK, and then click Install updates to start the download and installation process.
   

How to uninstall Bing Bar

To uninstall Bing Bar in Windows Vista and Windows 7, follow these steps:

1. Click Start, and then click Control Panel.
2. Under Programs, click Uninstall a program.
3. In the Uninstall or change a program list, click Bing Bar, and then click Uninstall.
4. Follow the instructions.

To uninstall Bing Bar in Windows XP, follow these steps:

1. Click Start, click Control Panel, and then double-click Add or Remove Programs.
2. In the Currently installed programs list, click Bing Bar, and then click Remove.

To uninstall Bing Bar in Windows 8 and in Windows 8.1, follow these steps:

1. Swipe in from the right side of the screen, and then tap Search.
   Note If you are using a mouse, point to the lower-right corner of the screen, and then click Search.
2. Type Uninstall a program in the search box, tap or click Settings, and then tap or click Uninstall a program.
3. In the Uninstall or change a program list, tap or click Bing Bar, and then tap or click Uninstall.
4. Follow the instructions.