If you closed by mistake some or all of the tabs in the IE9 browser, note that they can easily be restored Here are the steps.
- Open Internet Explorer and enable the display of the command bar. To do this, right click on the tab bar and select the Command Bar.
- Click on Tools> Reopen Last Browsing Session
All tabs of browser used at the last session will be reactivated. Unless you has deleted the browsing history and deleted all temporary Internet files.