diff --git a/windows/client-management/mdm/bitlocker-csp.md b/windows/client-management/mdm/bitlocker-csp.md
index 652a24f8e4..adf3b8c44c 100644
--- a/windows/client-management/mdm/bitlocker-csp.md
+++ b/windows/client-management/mdm/bitlocker-csp.md
@@ -19,6 +19,9 @@ The BitLocker configuration service provider (CSP) is used by the enterprise to
 > Settings are enforced only at the time encryption is started. Encryption is not restarted with settings changes.  
 > You must send all the settings together in a single SyncML to be effective.
 
+> [!NOTE] Devices that pass Hardware Security Testability Specification (HSTI) validation or Modern 
+> Standby devices will not be able to configure a Startup PIN using this CSP. Users are required to manually configure the PIN.
+
 A Get operation on any of the settings, except for RequireDeviceEncryption and RequireStorageCardEncryption, returns
 the setting configured by the admin.