diff --git a/pkg/patching/patching.go b/pkg/patching/patching.go
index ad76af3..0f65914 100644
--- a/pkg/patching/patching.go
+++ b/pkg/patching/patching.go
@@ -38,6 +38,19 @@ func PatchTurtleWoW(myWindow fyne.Window, updateAllStatuses func()) {
 
 	for resourceName, destPath := range filesToCopy {
 		log.Printf("Processing resource: %s to %s", resourceName, destPath)
+
+		// Check if file already exists and has correct size
+		if utils.PathExists(destPath) && utils.CompareFileWithBundledResource(destPath, resourceName) {
+			log.Printf("File %s already exists with correct size, skipping copy", destPath)
+			continue
+		}
+
+		if utils.PathExists(destPath) {
+			log.Printf("File %s exists but has incorrect size, updating...", destPath)
+		} else {
+			log.Printf("File %s does not exist, creating...", destPath)
+		}
+
 		resource, err := fyne.LoadResourceFromPath(resourceName)
 		if err != nil {
 			errMsg := fmt.Sprintf("failed to open bundled resource %s: %v", resourceName, err)
diff --git a/pkg/ui/status.go b/pkg/ui/status.go
index 5ebc44e..6dd6e16 100644
--- a/pkg/ui/status.go
+++ b/pkg/ui/status.go
@@ -92,9 +92,18 @@ func updateTurtleWoWStatus() {
 			}
 		}
 
+		// Check if patched files have the correct size (matches bundled versions)
+		winerosettaDllCorrectSize := utils.CompareFileWithBundledResource(winerosettaDllPath, "winerosetta/winerosetta.dll")
+		d3d9DllCorrectSize := utils.CompareFileWithBundledResource(d3d9DllPath, "winerosetta/d3d9.dll")
+		libSiliconPatchCorrectSize := utils.CompareFileWithBundledResource(libSiliconPatchDllPath, "winerosetta/libSiliconPatch.dll")
+		rosettaX87CorrectSize := utils.CompareFileWithBundledResource(rosettaX87ExePath, "rosettax87/rosettax87")
+		libRuntimeRosettaX87CorrectSize := utils.CompareFileWithBundledResource(libRuntimeRosettaX87Path, "rosettax87/libRuntimeRosettax87")
+
 		if utils.PathExists(winerosettaDllPath) && utils.PathExists(d3d9DllPath) && utils.PathExists(libSiliconPatchDllPath) &&
 			utils.DirExists(rosettaX87DirPath) && utils.PathExists(rosettaX87ExePath) &&
-			utils.PathExists(libRuntimeRosettaX87Path) && dllsFileValid {
+			utils.PathExists(libRuntimeRosettaX87Path) && dllsFileValid &&
+			winerosettaDllCorrectSize && d3d9DllCorrectSize && libSiliconPatchCorrectSize &&
+			rosettaX87CorrectSize && libRuntimeRosettaX87CorrectSize {
 			paths.PatchesAppliedTurtleWoW = true
 		}
 	}
diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go
index 7a64588..96e33b6 100644
--- a/pkg/utils/utils.go
+++ b/pkg/utils/utils.go
@@ -138,3 +138,37 @@ func CheckForUpdate(currentVersion string) (latestVersion, releaseNotes string,
 	latest := strings.TrimPrefix(data.TagName, "v")
 	return latest, data.Body, latest != currentVersion, nil
 }
+
+// GetBundledResourceSize returns the size of a bundled resource
+func GetBundledResourceSize(resourcePath string) (int64, error) {
+	resource, err := fyne.LoadResourceFromPath(resourcePath)
+	if err != nil {
+		return 0, fmt.Errorf("failed to load bundled resource %s: %v", resourcePath, err)
+	}
+	return int64(len(resource.Content())), nil
+}
+
+// CompareFileWithBundledResource compares the size of a file with a bundled resource
+func CompareFileWithBundledResource(filePath, resourcePath string) bool {
+	if !PathExists(filePath) {
+		return false
+	}
+
+	// Get file size
+	fileInfo, err := os.Stat(filePath)
+	if err != nil {
+		log.Printf("Failed to get file info for %s: %v", filePath, err)
+		return false
+	}
+	fileSize := fileInfo.Size()
+
+	// Get bundled resource size
+	resourceSize, err := GetBundledResourceSize(resourcePath)
+	if err != nil {
+		log.Printf("Failed to get bundled resource size for %s: %v", resourcePath, err)
+		return false
+	}
+
+	log.Printf("Comparing file sizes: %s (%d bytes) vs %s (%d bytes)", filePath, fileSize, resourcePath, resourceSize)
+	return fileSize == resourceSize
+}