diff --git a/ppocr/data/det/dataset_traversal.py b/ppocr/data/det/dataset_traversal.py
old mode 100755
new mode 100644
index 3051c60d370e532248dc45497792f26017f0f337..272d7317c9a98a695dad3451bfc108cc29e74bce
--- a/ppocr/data/det/dataset_traversal.py
+++ b/ppocr/data/det/dataset_traversal.py
@@ -13,6 +13,7 @@
 #limitations under the License.
 
 import os
+import sys
 import math
 import random
 import functools
@@ -42,6 +43,10 @@ class TrainReader(object):
             img_num = len(label_infor_list)
             img_id_list = list(range(img_num))
             random.shuffle(img_id_list)
+            if sys.platform == "win32":
+                print("multiprocess is not fully compatible with Windows."
+                      "num_workers will be 1.")
+                self.num_workers = 1
             for img_id in range(process_id, img_num, self.num_workers):
                 label_infor = label_infor_list[img_id_list[img_id]]
                 outs = self.process(label_infor)
diff --git a/ppocr/data/reader_main.py b/ppocr/data/reader_main.py
index 55bd1e0842558635533b6bf2d746a3ad8a7c5b9d..b0df0d462b3dd851c8c5ffbe2aff988b8f6b69f6 100755
--- a/ppocr/data/reader_main.py
+++ b/ppocr/data/reader_main.py
@@ -66,6 +66,8 @@ def reader_main(config=None, mode=None):
     reader_function = params['reader_function']
     function = create_module(reader_function)(params)
     if mode == "train":
+        if sys.platform == "win32":
+            return function(0)
         readers = []
         num_workers = params['num_workers']
         for process_id in range(num_workers):
diff --git a/ppocr/data/rec/dataset_traversal.py b/ppocr/data/rec/dataset_traversal.py
index 357a89fbe53689177b34ef95f03fb532a9bae9d0..f60b9fe36dda95dd6ce58a0c0e6b57c843280b35 100755
--- a/ppocr/data/rec/dataset_traversal.py
+++ b/ppocr/data/rec/dataset_traversal.py
@@ -13,6 +13,7 @@
 #limitations under the License.
 
 import os
+import sys
 import math
 import random
 import numpy as np
@@ -191,16 +192,21 @@ class SimpleReader(object):
                 img_num = len(label_infor_list)
                 img_id_list = list(range(img_num))
                 random.shuffle(img_id_list)
+                if sys.platform=="win32":
+                    print("multiprocess is not fully compatible with Windows."
+                          "num_workers will be 1.")
+                    self.num_workers = 1
                 for img_id in range(process_id, img_num, self.num_workers):
                     label_infor = label_infor_list[img_id_list[img_id]]
                     substr = label_infor.decode('utf-8').strip("\n").split("\t")
                     img_path = self.img_set_dir + "/" + substr[0]
                     img = cv2.imread(img_path)
-                    if img.shape[-1]==1 or len(list(img.shape))==2:
-                        img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
                     if img is None:
                         logger.info("{} does not exist!".format(img_path))
                         continue
+                    if img.shape[-1]==1 or len(list(img.shape))==2:
+                        img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
+
                     label = substr[1]
                     outs = process_image(img, self.image_shape, label,
                                          self.char_ops, self.loss_type,
diff --git a/ppocr/utils/character.py b/ppocr/utils/character.py
index b40750392291f271b26fef88e58844be9020d2ea..3cbc31a49b991cab7f2f8d8c56db4e0d611fbf55 100755
--- a/ppocr/utils/character.py
+++ b/ppocr/utils/character.py
@@ -34,7 +34,7 @@ class CharacterOps(object):
             with open(character_dict_path, "rb") as fin:
                 lines = fin.readlines()
                 for line in lines:
-                    line = line.decode('utf-8').strip("\n")
+                    line = line.decode('utf-8').strip("\n").strip("\r\n")
                     self.character_str += line
             dict_character = list(self.character_str)
         elif self.character_type == "en_sensitive":