diff --git a/usr/lib/tik/modules/pre/10-welcome b/usr/lib/tik/modules/pre/10-welcome
index 596676d..4c48e76 100644
--- a/usr/lib/tik/modules/pre/10-welcome
+++ b/usr/lib/tik/modules/pre/10-welcome
@@ -35,5 +35,15 @@ checkLaptop() {
         fi
 }
 
+verify_efi() {
+	# Verify that the system was booted with EFI, exit with error if not
+	if [ ! -d /sys/firmware/efi ]; then
+		# System was not booted with EFI
+		local error_msg="openSUSE Aeon requires UEFI mode, which is not found on your system.\nPlease check your BIOS settings to see if UEFI can be enabled."
+		error "${error_msg}"
+	fi
+}
+
 proceedInstall
-checkLaptop
\ No newline at end of file
+verify_efi
+checkLaptop