### Working with drivers in the WebCTRL® interface A controller's driver is defined in SiteBuilder when the system is engineered, but you can make the following changes in the WebCTRL® interface. Change the driver settings. See "Setting up the driver" in the controller's Technical Instructions. Change or upgrade a driver. See topic below. Reload a driver if it becomes corrupt (for example, a driver page is missing in the WebCTRL® interface). On the WebCTRL® Network tree, right-click the controller or driver, then select Reload Driver. Reloading updates all instances of the driver throughout the system and marks the controller(s) for an All Content download. Changes you made on the driver pages in the WebCTRL® interface remain in effect. After you make these changes, you must download All Content to the affected controller(s). NOTE You can also make these changes in SiteBuilder. See "To change or upgrade a driver" in SiteBuilder Help.
3. #### To change or upgrade a driver On the WebCTRL® Network tree, right-click the controller, then select Configure. If other controllers in the system use this driver, select which controllers you want to change. Do one of the following:
   If the driver is... |
   --- | ---
   In the Driver Version drop-down list | a. Select the driver. b. Click Accept.
   Not in the Driver Version drop-down list | a. Click Add. b. Browse to select the driver. c. Click Open. d. Click Continue. e. Click Close. f. Click Close again.
Download All Content to the controller. NOTE You can click Delete Unused in the Controller section to delete all unused drivers in WebCTRLx.x\webroot\<system_name>\drivers.