1. By disabling the "iphelper" service, you can solve the problem of bouncing back to the desktop after pressing the letter key.

2. In the computer management interface that opens, click the drop-down button to expand the Services and Applications tab.

3. Find "iphelper" and click on this service item. Two rows of options will be displayed in the upper left corner. Click "Stop" the service. Just click Stop. From Survival of the Jedi.