diff --git a/plugins/RemovableDriveOutputDevice/WindowsRemovableDrivePlugin.py b/plugins/RemovableDriveOutputDevice/WindowsRemovableDrivePlugin.py
index b47a37d35c..0df38dbf74 100644
--- a/plugins/RemovableDriveOutputDevice/WindowsRemovableDrivePlugin.py
+++ b/plugins/RemovableDriveOutputDevice/WindowsRemovableDrivePlugin.py
@@ -2,22 +2,14 @@
 # Copyright (c) 2013 David Braam
 # Uranium is released under the terms of the AGPLv3 or higher.
 
-from . import RemovableDrivePlugin
-
-import threading
-import string
-
-from ctypes import windll
-from ctypes import wintypes
-
-import ctypes
-import time
-import os
-import subprocess
-
 from UM.i18n import i18nCatalog
 catalog = i18nCatalog("cura")
 
+from . import RemovableDrivePlugin
+
+import string
+import ctypes
+
 # WinAPI Constants that we need
 # Hardcoded here due to stupid WinDLL stuff that does not give us access to these values.
 DRIVE_REMOVABLE = 2 # [CodeStyle: Windows Enum value]
@@ -37,7 +29,7 @@ class WindowsRemovableDrivePlugin(RemovableDrivePlugin.RemovableDrivePlugin):
     def checkRemovableDrives(self):
         drives = {}
 
-        bitmask = windll.kernel32.GetLogicalDrives()
+        bitmask = ctypes.windll.kernel32.GetLogicalDrives()
         # Check possible drive letters, from A to Z
         # Note: using ascii_uppercase because we do not want this to change with locale!
         for letter in string.ascii_uppercase:
@@ -45,11 +37,11 @@ class WindowsRemovableDrivePlugin(RemovableDrivePlugin.RemovableDrivePlugin):
 
             # Do we really want to skip A and B?
             # GetDriveTypeA explicitly wants a byte array of type ascii. It will accept a string, but this wont work
-            if bitmask & 1 and windll.kernel32.GetDriveTypeA(drive.encode("ascii")) == DRIVE_REMOVABLE:
+            if bitmask & 1 and ctypes.windll.kernel32.GetDriveTypeA(drive.encode("ascii")) == DRIVE_REMOVABLE:
                 volume_name = ""
                 name_buffer = ctypes.create_unicode_buffer(1024)
                 filesystem_buffer = ctypes.create_unicode_buffer(1024)
-                error = windll.kernel32.GetVolumeInformationW(ctypes.c_wchar_p(drive), name_buffer, ctypes.sizeof(name_buffer), None, None, None, filesystem_buffer, ctypes.sizeof(filesystem_buffer))
+                error = ctypes.windll.kernel32.GetVolumeInformationW(ctypes.c_wchar_p(drive), name_buffer, ctypes.sizeof(name_buffer), None, None, None, filesystem_buffer, ctypes.sizeof(filesystem_buffer))
 
                 if error != 0:
                     volume_name = name_buffer.value
@@ -66,7 +58,7 @@ class WindowsRemovableDrivePlugin(RemovableDrivePlugin.RemovableDrivePlugin):
 
                 # Check for the free space. Some card readers show up as a drive with 0 space free when there is no card inserted.
                 free_bytes = ctypes.c_longlong(0)
-                if windll.kernel32.GetDiskFreeSpaceExA(drive.encode("ascii"), ctypes.byref(free_bytes), None, None) == 0:
+                if ctypes.windll.kernel32.GetDiskFreeSpaceExA(drive.encode("ascii"), ctypes.byref(free_bytes), None, None) == 0:
                     continue
 
                 if free_bytes.value < 1:
@@ -80,19 +72,19 @@ class WindowsRemovableDrivePlugin(RemovableDrivePlugin.RemovableDrivePlugin):
     def performEjectDevice(self, device):
         # Magic WinAPI stuff
         # First, open a handle to the Device
-        handle = windll.kernel32.CreateFileA("\\\\.\\{0}".format(device.getId()[:-1]).encode("ascii"), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, None, OPEN_EXISTING, 0, None )
+        handle = ctypes.windll.kernel32.CreateFileA("\\\\.\\{0}".format(device.getId()[:-1]).encode("ascii"), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, None, OPEN_EXISTING, 0, None )
 
         if handle == -1:
-            print(windll.kernel32.GetLastError())
+            print(ctypes.windll.kernel32.GetLastError())
             return
 
         result = None
         # Then, try and tell it to eject
-        if not windll.kernel32.DeviceIoControl(handle, IOCTL_STORAGE_EJECT_MEDIA, None, None, None, None, None, None):
+        if not ctypes.windll.kernel32.DeviceIoControl(handle, IOCTL_STORAGE_EJECT_MEDIA, None, None, None, None, None, None):
             result = False
         else:
             result = True
 
         # Finally, close the handle
-        windll.kernel32.CloseHandle(handle)
+        ctypes.windll.kernel32.CloseHandle(handle)
         return result