You can uninstall Safe Browser from Programs and Features list in the Control Panel.
Click on the Start button then click on Control Panel.
Click on the Add or Remove Programs icon. Vista + users: use the Programs and Features icon in Control Panel.
Click on the Safe Browser entry.
Click on the Change/Remove. Vista and 7 users: Uninstall/Change.
When prompted click Next to begin the uninstall process.
When prompted click Uninstall.
When prompted click Reboot Now. Safe Browser is now uninstalled.