1. Click Start.
2. In the Search field, type gpedit.msc and press Enter.
3. If prompted by UAC (User Account Control), click YES .
4. On the left pane, go to Configuration\Administrative Templates\ Windows Components\ Windows SideShow.
5. On thr right pane, double click Turn off Windows SideShow.
6. Click the Disabled radio button.
7. Click OK.