In the meantime, you may try these steps as a work-around. Go to https://account.microsoft.com/privacy/,please make sure to sign in with your Microsoft account. Scroll down to Search History which shows the things you type when you search for information on the internet using Bing. Just simply click on 'Clear seach history'.

Go to https://account.microsoft.com/privacy/.Please make sure to sign in to your Microsoft account. Scroll down to Search History and simply click on 'Clear seach history'.

Go to the Bing homepage and click on Search History at the top of the page or go to the following link: https://www.bing.com/profile/history/delete On the right side of the page, you will see the Clear all button, this will delete your entire search history On the next screen, you will be asked to verify if you want to continue or not