(AzureCXP) fixes MicrosoftDocs/azure-docs#97113

This command: "sysprep /generalize /shutdown /mode:vm" introduces a pop-up window that asks options which may cause confusion to the user
https://microsoft-my.sharepoint.com/:i:/p/mariliu/EYx0nDpWpj5Hhy7rTYre2g0Bg5m_GvkiYlpDrsJg1IkcWQ?e=D8ebDX

Suggest to use sysprep.exe /oobe /generalize /mode:vm /shutdown instead.

Content author Cynthn approved this PR

Author: PriyankaRudramaina

articles/virtual-machines/generalize.md

@@ -91,7 +91,7 @@ To generalize your Windows VM, follow these steps:
 
 5. Then change the directory to %windir%\system32\sysprep, and then run:
    ```
-   sysprep /generalize /shutdown /mode:vm
+   sysprep.exe /oobe /generalize /mode:vm /shutdown
    ```
 6. The VM will shut down when Sysprep is finished generalizing the VM. Do not restart the VM.