diff --git a/MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskImpl.c b/MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskImpl.c
index b5770dd85a..d4317019a5 100644
--- a/MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskImpl.c
+++ b/MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskImpl.c
@@ -191,9 +191,6 @@ UnregisterAllRamDisks (
         FreePool ((VOID *)(UINTN) PrivateData->StartingAddr);
       }
 
-
-      gBS->DisconnectController (PrivateData->Handle, NULL, NULL);
-
       FreePool (PrivateData->DevicePath);
       FreePool (PrivateData);
       ListEntryNum--;
diff --git a/MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskProtocol.c b/MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskProtocol.c
index cfeae218e7..b53709b493 100644
--- a/MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskProtocol.c
+++ b/MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskProtocol.c
@@ -339,8 +339,6 @@ RamDiskUnregister (
           FreePool ((VOID *)(UINTN) PrivateData->StartingAddr);
         }
 
-        gBS->DisconnectController (PrivateData->Handle, NULL, NULL);
-
         FreePool (PrivateData->DevicePath);
         FreePool (PrivateData);
         ListEntryNum--;