diff --git a/README.md b/README.md
index d056d92..b315719 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,14 @@ git clone https://gitea.squirrelnut.synology.me:5001/FPGALover/RISCV_picorv32_fp
 ### 3. Install Python
 Before you can cross compile, you need to have Python installed on your windows machine, make sure you install Python2.7 or Python3, in case you install python3, you would need to modify the variable "PYTHON_VER" at the line # 8 of the file \sw\Makefile. Also make sure that your python is register under the *Path* enviroment variables
 
+open a CMD and check that you can summon python when you type "python" or "python3", just make sure it correspond to the Makefile name
+```
+    > python
+    Python 3.11.7 (main, Dec  7 2023, 09:09:57)  [GCC UCRT 13.2.0 64 bit (AMD64)] on win32
+    Type "help", "copyright", "credits" or "license" for more information.
+    >>> exit()
+```
+
 ### 4. Cross compile
 Go to the directory RISCV_picorv32_fpga/sw using a CMD.
 
@@ -210,7 +218,9 @@ you can find that that these binaries are used by the file memory.v(xoro_top->Me
 ```
 
 
-## Other Linux and Windows precompiled Toolchains
+## Other Linux and Windows precompiled Toolchains just in case
     - https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/ for mingw64
     - https://gnutoolchains.com/risc-v/ 
 
+    under this repo you can also find some prebuilt binaries for Linux and Windows, in case any of the servers was down, or you could not build it.
+