diff --git a/dislocker_client.py b/dislocker_client.py
index 48ec257..faf41cd 100644
--- a/dislocker_client.py
+++ b/dislocker_client.py
@@ -16,6 +16,7 @@ import shutil
 import uuid
 import time
 import win32com.client
+import pythoncom
 
 app_name = "Dislocker"
 dislocker_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
@@ -316,23 +317,29 @@ class Lock(customtkinter.CTkToplevel):
         self.signout_button.configure(state="normal", fg_color="#3c8dd0")
 
     def get_usb_devices(self):
-        str_computer = "."
-        obj_wmi_service = win32com.client.Dispatch("WbemScripting.SWbemLocator")
-        obj_swem_services = obj_wmi_service.ConnectServer(str_computer, "root\\cimv2")
-        col_items = obj_swem_services.ExecQuery("Select * from Win32_PnPEntity where PNPDeviceID like 'USB%'")
+        try:
+            pythoncom.CoInitialize()
+            str_computer = "."
+            obj_wmi_service = win32com.client.Dispatch("WbemScripting.SWbemLocator")
+            obj_swem_services = obj_wmi_service.ConnectServer(str_computer, "root\\cimv2")
+            col_items = obj_swem_services.ExecQuery("Select * from Win32_PnPEntity where PNPDeviceID like 'USB%'")
 
-        devices = []
-        for obj_item in col_items:
-            devices.append({
-                "device_id": obj_item.DeviceID,
-                "PNPDeviceID": obj_item.PNPDeviceID,
-                "Description": obj_item.Description,
-                "device_name": obj_item.Name,
-                "Manufacturer": obj_item.Manufacturer,
-                "Service": obj_item.Service
-            })
+            devices = []
+            for obj_item in col_items:
+                devices.append({
+                    "device_id": obj_item.DeviceID,
+                    "PNPDeviceID": obj_item.PNPDeviceID,
+                    "Description": obj_item.Description,
+                    "device_name": obj_item.Name,
+                    "Manufacturer": obj_item.Manufacturer,
+                    "Service": obj_item.Service
+                })
 
-        return devices
+            pythoncom.CoUninitialize()
+            return devices
+        except pythoncom.com_error as e:
+            print("Error:", e)
+            return []
 
     def auth(self):
         self.button_disable()