diff --git a/doc/setup_tutorial_windows/index.md b/doc/setup_tutorial_windows/index.md
index 76a5557..8548453 100644
--- a/doc/setup_tutorial_windows/index.md
+++ b/doc/setup_tutorial_windows/index.md
@@ -13,6 +13,13 @@
 </td></tr>
 <tr><td colspan=2 align="center">
 
+### Set total virtual memory to 32Gb or more.
+
+<img src="virtual_memory.jpg"></img>
+
+</td></tr>
+<tr><td colspan=2 align="center">
+
 ### Download Windows build exe from one of the sources.
 
 <img src="download_build.jpg"></img>
diff --git a/doc/setup_tutorial_windows/virtual_memory.jpg b/doc/setup_tutorial_windows/virtual_memory.jpg
new file mode 100644
index 0000000..da95ad3
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