diff --git a/README.md b/README.md
index 1dc67d0..76f9c9d 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ Following guide explains how to make a release win32 build
 
 **Installing**
 
-1. Disable a digital signature enforcement on a test machine (bcdedit /set TESTSIGNING ON)
+1. Disable a digital signature enforcement on a test machine (bcdedit /set TESTSIGNING ON) and reboot it
 2. Copy files from **\<ProjectDir\>\Release\Hidden Package** to a test machine
 3. Right mouse click on **Hidden.inf** and choose **Install**
 4. Start a driver (sc start hidden)