diff --git a/README.md b/README.md
index 7aa62b4..0a909c6 100644
--- a/README.md
+++ b/README.md
@@ -79,6 +79,8 @@ npm run configure-policy
 npm run setup
 ```
 
+> NOTE: In case you got error **.ps1 is not digitally signed**, this is caused by the PS1 files under `/src/windows` folder was blocked because its downloaded from the internet. Fix this issue by unblock it, or simply `PS> dir *.ps1 -Path ".\src\windows\" -Recurse | Unblock-File` with Elevated (Administrator) Powershell. 
+
 ## Removal
 
 To remove the pm2 service, run: