diff --git a/keyauth.py b/keyauth.py
index b34596b..df8c854 100644
--- a/keyauth.py
+++ b/keyauth.py
@@ -1,3 +1,4 @@
+import win32security #get sid
 import json as jsond  # json
 
 import time  # sleep before exit
@@ -456,19 +457,16 @@ def __load_user_data(self, data):
 class others:
     @staticmethod
     def get_hwid():
+        winuser = os.getlogin()
         if platform.system() != "Windows":
             with open("/etc/machine-id") as f:
                 hwid = f.read()
                 return hwid
 
-        cmd = subprocess.Popen(
-            "wmic useraccount where name='%username%' get sid", stdout=subprocess.PIPE, shell=True)
+        sid = win32security.LookupAccountName(None, winuser)[0]
+        sidstr = win32security.ConvertSidToStringSid(sid)
 
-        (suppost_sid, error) = cmd.communicate()
-
-        suppost_sid = suppost_sid.split(b'\n')[1].strip()
-
-        return suppost_sid.decode()
+        return sidstr
 
 
 class encryption:
@@ -514,4 +512,4 @@ def decrypt(message, enc_key, iv):
             return encryption.decrypt_string(message.encode(), _key.encode(), _iv.encode()).decode()
         except:
             print("Invalid Application Information. Long text is secret short text is ownerid. Name is supposed to be app name not username")
-            sys.exit()
\ No newline at end of file
+            sys.exit()
diff --git a/requirements.txt b/requirements.txt
index f3a56f4..1c19e06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 requests
 requests_toolbelt
 pycryptodome
+pywin32