diff --git a/Learun.Framework.Ultimate V7/Quanjiang.DigitalScholl.WebLicense/LicenseChecker.cs b/Learun.Framework.Ultimate V7/Quanjiang.DigitalScholl.WebLicense/LicenseChecker.cs
index a06fe7089..962473ae6 100644
--- a/Learun.Framework.Ultimate V7/Quanjiang.DigitalScholl.WebLicense/LicenseChecker.cs	
+++ b/Learun.Framework.Ultimate V7/Quanjiang.DigitalScholl.WebLicense/LicenseChecker.cs	
@@ -21,9 +21,9 @@ namespace Quanjiang.DigitalScholl.WebLicense
     {
         public static string GenerateMachineId()
         {
-            string cpuid = LicenseManager.GetCPUSerialNumber();
+            string cpuid = ""; LicenseManager.GetCPUSerialNumber();
             string hd = LicenseManager.GetHardDriverNumber();
-            string bios = LicenseManager.GetBoisNumber();
+            string bios = ""; LicenseManager.GetBoisNumber();
             string uid = LicenseManager.GetMachineName();
             return DESEncrypt.Encrypt(cpuid + hd + bios + uid, "bjquanjiang@2020!");
         }