diff --git a/source/blender/makesrna/intern/rna_object.cc b/source/blender/makesrna/intern/rna_object.cc
index d04ce261eed..783acd50701 100644
--- a/source/blender/makesrna/intern/rna_object.cc
+++ b/source/blender/makesrna/intern/rna_object.cc
@@ -2689,7 +2689,6 @@ static void rna_def_object_display(BlenderRNA *brna)
 
   prop = RNA_def_property(srna, "show_shadows", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_negative_sdna(prop, nullptr, "dtx", OB_DRAW_NO_SHADOW_CAST);
-  RNA_def_property_boolean_default(prop, true);
   RNA_def_property_ui_text(prop, "Shadow", "Object cast shadows in the 3D viewport");
   RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, nullptr);
 
diff --git a/source/blender/makesrna/intern/rna_space.cc b/source/blender/makesrna/intern/rna_space.cc
index a811f9e262f..6590c3fa97f 100644
--- a/source/blender/makesrna/intern/rna_space.cc
+++ b/source/blender/makesrna/intern/rna_space.cc
@@ -4365,7 +4365,6 @@ static void rna_def_space_view3d_shading(BlenderRNA *brna)
   RNA_def_property_boolean_negative_sdna(
       prop, nullptr, "flag", V3D_SHADING_STUDIOLIGHT_VIEW_ROTATION);
   RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
-  RNA_def_property_boolean_default(prop, false);
   RNA_def_property_ui_text(
       prop, "World Space Lighting", "Make the HDR rotation fixed and not follow the camera");
   RNA_def_property_update(prop, NC_SPACE | ND_SPACE_VIEW3D | NS_VIEW3D_SHADING, nullptr);
diff --git a/source/blender/makesrna/intern/rna_userdef.cc b/source/blender/makesrna/intern/rna_userdef.cc
index 293a6d2a3fa..fb9b92330a2 100644
--- a/source/blender/makesrna/intern/rna_userdef.cc
+++ b/source/blender/makesrna/intern/rna_userdef.cc
@@ -5194,7 +5194,6 @@ static void rna_def_userdef_view(BlenderRNA *brna)
   prop = RNA_def_property(srna, "show_splash", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_negative_sdna(prop, nullptr, "uiflag", USER_SPLASH_DISABLE);
   RNA_def_property_ui_text(prop, "Show Splash", "Display splash screen on startup");
-  RNA_def_property_boolean_default(prop, true);
 
   prop = RNA_def_property(srna, "show_playback_fps", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(prop, nullptr, "uiflag", USER_SHOW_FPS);
@@ -5500,7 +5499,6 @@ static void rna_def_userdef_view(BlenderRNA *brna)
   RNA_def_property_boolean_negative_sdna(prop, nullptr, "text_render", USER_TEXT_DISABLE_AA);
   RNA_def_property_ui_text(
       prop, "Text Anti-Aliasing", "Smooth jagged edges of user interface text");
-  RNA_def_property_boolean_default(prop, true);
   RNA_def_property_update(prop, 0, "rna_userdef_text_update");
 
   prop = RNA_def_property(srna, "use_text_render_subpixelaa", PROP_BOOLEAN, PROP_NONE);
@@ -5737,7 +5735,6 @@ static void rna_def_userdef_edit(BlenderRNA *brna)
       prop,
       "Show Auto Keying Warning",
       "Show warning indicators when transforming objects and bones if auto keying is enabled");
-  RNA_def_property_boolean_default(prop, true);
 
   /* keyframing settings */
   prop = RNA_def_property(srna, "key_insert_channels", PROP_ENUM, PROP_NONE);
@@ -6264,7 +6261,6 @@ static void rna_def_userdef_system(BlenderRNA *brna)
       prop,
       "Edit Mode Smooth Wires",
       "Enable edit mode edge smoothing, reducing aliasing (requires restart)");
-  RNA_def_property_boolean_default(prop, true);
   RNA_def_property_update(prop, 0, "rna_userdef_gpu_update");
 
   prop = RNA_def_property(srna, "use_region_overlap", PROP_BOOLEAN, PROP_NONE);
@@ -6370,7 +6366,6 @@ static void rna_def_userdef_system(BlenderRNA *brna)
                            "GPU Depth Picking",
                            "When making a selection in 3D View, use the GPU depth buffer to "
                            "ensure the frontmost object is selected first");
-  RNA_def_property_boolean_default(prop, true);
 
   /* GPU subdivision evaluation. */
 
@@ -7261,13 +7256,11 @@ static void rna_def_userdef_filepaths(BlenderRNA *brna)
   RNA_def_property_boolean_negative_sdna(prop, nullptr, "uiflag", USER_HIDE_RECENT);
   RNA_def_property_ui_text(
       prop, "Show Recent Locations", "Show Recent locations list in the File Browser");
-  RNA_def_property_boolean_default(prop, true);
 
   prop = RNA_def_property(srna, "show_system_bookmarks", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_negative_sdna(prop, nullptr, "uiflag", USER_HIDE_SYSTEM_BOOKMARKS);
   RNA_def_property_ui_text(
       prop, "Show System Locations", "Show System locations list in the File Browser");
-  RNA_def_property_boolean_default(prop, true);
 
   prop = RNA_def_property(srna, "use_relative_paths", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(prop, nullptr, "flag", USER_RELPATHS);
@@ -7284,7 +7277,6 @@ static void rna_def_userdef_filepaths(BlenderRNA *brna)
   prop = RNA_def_property(srna, "use_load_ui", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_negative_sdna(prop, nullptr, "flag", USER_FILENOUI);
   RNA_def_property_ui_text(prop, "Load UI", "Load user interface setup when loading .blend files");
-  RNA_def_property_boolean_default(prop, true);
   RNA_def_property_update(prop, 0, "rna_userdef_load_ui_update");
 
   prop = RNA_def_property(srna, "use_scripts_auto_execute", PROP_BOOLEAN, PROP_NONE);
@@ -7301,7 +7293,6 @@ static void rna_def_userdef_filepaths(BlenderRNA *brna)
       prop,
       "Tabs as Spaces",
       "Automatically convert all new tabs into spaces for new and loaded text files");
-  RNA_def_property_boolean_default(prop, true);
 
   prop = RNA_def_property(srna, "use_extension_online_access_handled", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(
@@ -7731,7 +7722,6 @@ void RNA_def_userdef(BlenderRNA *brna)
   prop = RNA_def_property(srna, "use_recent_searches", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_negative_sdna(prop, nullptr, "flag", USER_FLAG_RECENT_SEARCHES_DISABLE);
   RNA_def_property_ui_text(prop, "Recent Searches", "Sort the recently searched items at the top");
-  RNA_def_property_boolean_default(prop, true);
 
   /* nested structs */
   prop = RNA_def_property(srna, "view", PROP_POINTER, PROP_NONE);