diff --git a/bypy/windows.conf b/bypy/windows.conf
index 3ff5a1ce16..6972c2aeb3 100644
--- a/bypy/windows.conf
+++ b/bypy/windows.conf
@@ -1,5 +1,5 @@
-# Requires installation of Visual Studio 2017 Community Edition, Git, Python 3.7 and Perl 
-# git.exe must be in PATH
+# Requires installation of Visual Studio 2017 Community Edition, Git, Python 3.7 and Perl
+# git.exe must be in PATH. Must have ~100GB available disk space and 8GB RAM
 # Intall certifi in python 3 with:
 # py.exe -m pip install certifi