diff --git a/tools/lammps-gui/TODO.md b/tools/lammps-gui/TODO.md
index bb8c469542..abb0292387 100644
--- a/tools/lammps-gui/TODO.md
+++ b/tools/lammps-gui/TODO.md
@@ -3,7 +3,6 @@ LAMMPS-GUI TODO list:
 # Short term goals
 
 - use qgetenv, qputenv for portability
-- update enabled/disabled status for accelerators during startup and fall back to None if needed.
 - rewrite syntax highlighting to be line oriented instead of word oriented.
   handle first part of line based on regular expressions, then advance and only highlight strings and numbers.
   handle "&" continuation and multiline strings with """ like C style comments in Qt docs example
diff --git a/tools/lammps-gui/lammpsgui.cpp b/tools/lammps-gui/lammpsgui.cpp
index ce3843b5a8..33771819aa 100644
--- a/tools/lammps-gui/lammpsgui.cpp
+++ b/tools/lammps-gui/lammpsgui.cpp
@@ -87,6 +87,25 @@ LammpsGui::LammpsGui(QWidget *parent, const char *filename) :
     // restorge and initialize settings
     QSettings settings;
 
+    // switch configured accelerator back to "none" if needed.
+    int accel = settings.value("accelerator", AcceleratorTab::None).toInt();
+    if (accel == AcceleratorTab::Opt) {
+        if (!lammps.config_has_package("OPT"))
+            settings.setValue("accelerator", AcceleratorTab::None);
+    } else if (accel == AcceleratorTab::OpenMP) {
+        if (!lammps.config_has_package("OPENMP"))
+            settings.setValue("accelerator", AcceleratorTab::None);
+    } else if (accel == AcceleratorTab::Intel) {
+        if (!lammps.config_has_package("INTEL"))
+            settings.setValue("accelerator", AcceleratorTab::None);
+    } else if (accel == AcceleratorTab::Gpu) {
+        if (!lammps.config_has_package("GPU") || !lammps.has_gpu_device())
+            settings.setValue("accelerator", AcceleratorTab::None);
+    } else if (accel == AcceleratorTab::Kokkos) {
+        if (!lammps.config_has_package("KOKKOS"))
+            settings.setValue("accelerator", AcceleratorTab::None);
+    }
+
     // check and initialize nthreads setting. Default is to use max if there
     // is no preference but do not override OMP_NUM_THREADS
 #if defined(_OPENMP)