diff --git a/OneByteWallhack.py b/OneByteWallhack.py
index 46bd332..e28fd62 100644
--- a/OneByteWallhack.py
+++ b/OneByteWallhack.py
@@ -1,13 +1,22 @@
-import pymem
-import re
+from pymem import Pymem
+from re import search
+from pymem.process import module_from_name
+from pymem.exception import ProcessNotFound
 
-pm = pymem.Pymem('csgo.exe')
-client = pymem.process.module_from_name(pm.process_handle,
-                                        'client.dll')
+try:
+    processName='csgo.exe'
+    pm = Pymem(processName)
+    client = module_from_name(pm.process_handle,'client.dll')
 
-clientModule = pm.read_bytes(client.lpBaseOfDll, client.SizeOfImage)
-address = client.lpBaseOfDll + re.search(rb'\x83\xF8.\x8B\x45\x08\x0F',
-                                         clientModule).start() + 2
+    clientLpBaseOfDll=client.lpBaseOfDll
+    clientModule = pm.read_bytes(clientLpBaseOfDll, client.SizeOfImage)
+    address = clientLpBaseOfDll + search(rb'\x83\xF8.\x8B\x45\x08\x0F',
+                                          clientModule).start() + 2
 
-pm.write_uchar(address, 2 if pm.read_uchar(address) == 1 else 1)
-pm.close_process()
+    pm.write_uchar(address, 2 if pm.read_uchar(address) == 1 else 1)
+    pm.close_process()
+
+    print("hack completed")
+    
+except ProcessNotFound:
+    print("error: couldn't find process",processName)
diff --git a/README.md b/README.md
index 7f43c2e..cec4ea2 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # OneByteWallhack
-CS:GO wallhack achieved by patching one byte of game memory. Written in Python 3.
+CS:GO wallhack achieved by patching one byte of game process memory. Written in Python 3.9
 
 This does the same as **r_drawothermodels 2** command but without touching the cvar, so it's VAC - safe.
 
@@ -13,4 +13,11 @@ if ( r_drawothermodels.GetInt() == 2 )
 }
 ```
 
-The **r_drawothermodels** check is modified to make the `if` expression evaluate to **true** when **r_drawothermodels** cvar is set to default value (1).
\ No newline at end of file
+The **r_drawothermodels** check is modified to make the `if` expression evaluate to **true** when **r_drawothermodels** cvar is set to default value (1).
+
+𝗜𝗺𝗽𝗼𝗿𝘁𝗮𝗻𝘁! :
+Download python 3.9 or newer if you hadn't: https://www.python.org/downloads/
+You may need to head to "C:\Users\ username \AppData\Local\Programs\Python\Python39\Scripts" press Win+R write "cmd" and "pip install pymem" and or "pip install pywin32" and restart your pc.
+
+Usage: 
+Run CSGO before this script. You will also need to run this script as administrator