# Removing system apps Removing a system app isn't WebView-specific, but it's occasionally necessary for WebView development. We have an [automated script to remove the preinstalled WebView](build-instructions.md#Removing-preinstalled-WebView) from the device, but if this script does not work or you need to remove a different system app, you can manually run the following adb commands. This uses "com.google.android.webview" as an example, but change the package name as necessary for your case. ```sh # Uninstall updates. Repeat "adb uninstall" until it fails with the # "DELETE_FAILED_INTERNAL_ERROR" error message to make sure you've removed all # the updates. $ adb uninstall com.google.android.webview Success $ adb uninstall com.google.android.webview Failure [DELETE_FAILED_INTERNAL_ERROR] # Figure out the path of the system app. This varies depending on OS level. $ adb shell pm path com.google.android.webview package:/system/app/WebViewGoogle/WebViewGoogle.apk $ adb root # This is necessary for M and up: $ adb disable-verity $ adb reboot # wait for device to reboot... $ adb root # For all OS versions: # Mount the system partition as read-write and 'rm' the path we found before. $ adb remount $ adb shell stop $ adb shell rm -rf /system/app/WebViewGoogle/WebViewGoogle.apk $ adb shell start ```