diff --git a/backend/consts/default_config.go b/backend/consts/default_config.go
index 58f168b..42aceed 100644
--- a/backend/consts/default_config.go
+++ b/backend/consts/default_config.go
@@ -4,3 +4,5 @@ const DEFAULT_FONT_SIZE = 14
 const DEFAULT_ASIDE_WIDTH = 300
 const DEFAULT_WINDOW_WIDTH = 1024
 const DEFAULT_WINDOW_HEIGHT = 768
+const MIN_WINDOW_WIDTH = 960
+const MIN_WINDOW_HEIGHT = 640
diff --git a/backend/services/preferences_service.go b/backend/services/preferences_service.go
index bfe00fa..f54b65a 100644
--- a/backend/services/preferences_service.go
+++ b/backend/services/preferences_service.go
@@ -113,7 +113,7 @@ func (p *preferencesService) GetAppVersion() (resp types.JSResp) {
 }
 
 func (p *preferencesService) SaveWindowSize(width, height int) {
-	if width >= consts.DEFAULT_WINDOW_WIDTH && height >= consts.DEFAULT_WINDOW_HEIGHT {
+	if width >= consts.MIN_WINDOW_WIDTH && height >= consts.MIN_WINDOW_HEIGHT {
 		p.UpdatePreferences(map[string]any{
 			"behavior.windowWidth":  width,
 			"behavior.windowHeight": height,
diff --git a/backend/services/system_service.go b/backend/services/system_service.go
index 0c6cc4e..679c3f1 100644
--- a/backend/services/system_service.go
+++ b/backend/services/system_service.go
@@ -6,6 +6,7 @@ import (
 	"log"
 	"sync"
 	"time"
+	"tinyrdm/backend/consts"
 	"tinyrdm/backend/types"
 )
 
@@ -28,6 +29,18 @@ func System() *systemService {
 
 func (s *systemService) Start(ctx context.Context) {
 	s.ctx = ctx
+
+	// maximize the window if screen size is lower than the minimum window size
+	if screen, err := runtime.ScreenGetAll(ctx); err == nil && len(screen) > 0 {
+		for _, sc := range screen {
+			if sc.IsCurrent {
+				if sc.Size.Width < consts.MIN_WINDOW_WIDTH || sc.Size.Height < consts.MIN_WINDOW_HEIGHT {
+					runtime.WindowMaximise(ctx)
+					break
+				}
+			}
+		}
+	}
 }
 
 // SelectFile open file dialog to select a file
diff --git a/backend/storage/preferences.go b/backend/storage/preferences.go
index a19f2b4..14f3dc8 100644
--- a/backend/storage/preferences.go
+++ b/backend/storage/preferences.go
@@ -47,8 +47,8 @@ func (p *PreferencesStorage) GetPreferences() (ret types.Preferences) {
 
 	ret = p.getPreferences()
 	ret.Behavior.AsideWidth = max(ret.Behavior.AsideWidth, consts.DEFAULT_ASIDE_WIDTH)
-	ret.Behavior.WindowWidth = max(ret.Behavior.WindowWidth, consts.DEFAULT_WINDOW_WIDTH)
-	ret.Behavior.WindowHeight = max(ret.Behavior.WindowHeight, consts.DEFAULT_WINDOW_HEIGHT)
+	ret.Behavior.WindowWidth = max(ret.Behavior.WindowWidth, consts.MIN_WINDOW_WIDTH)
+	ret.Behavior.WindowHeight = max(ret.Behavior.WindowHeight, consts.MIN_WINDOW_HEIGHT)
 	return
 }
 
diff --git a/main.go b/main.go
index 94ed2bb..ee76a97 100644
--- a/main.go
+++ b/main.go
@@ -44,8 +44,8 @@ func main() {
 		Title:     "Tiny RDM",
 		Width:     windowWidth,
 		Height:    windowHeight,
-		MinWidth:  consts.DEFAULT_WINDOW_WIDTH,
-		MinHeight: consts.DEFAULT_WINDOW_HEIGHT,
+		MinWidth:  consts.MIN_WINDOW_WIDTH,
+		MinHeight: consts.MIN_WINDOW_HEIGHT,
 		Frameless: runtime.GOOS != "darwin",
 		Menu:      appMenu,
 		AssetServer: &assetserver.Options{