Merge pull request #85911 from dcurwin/davidc-aug20

note about SFC

Author: PRMerger7

articles/backup/backup-azure-system-state.md

@@ -200,14 +200,16 @@ To complete the initial backup, use the Microsoft Azure Recovery Services agent.
 
 2. In the Recovery Services agent, click **Back Up Now** to complete the initial seeding over the network.
 
-    ![Windows Server back up now](./media/backup-try-azure-backup-in-10-mins/backup-now.png)
+    ![Windows Server back-up now](./media/backup-try-azure-backup-in-10-mins/backup-now.png)
 
 3. Select **System State** on the **Select Backup Item** screen that appears and click **Next**.
 
 4. On the Confirmation page, review the settings that the Back Up Now Wizard will use to back up the machine. Then click **Back Up**.
 
-4. Click **Close** to close the wizard. If you close the wizard before the backup process finishes, the wizard continues to run in the background.
-
+5. Click **Close** to close the wizard. If you close the wizard before the backup process finishes, the wizard continues to run in the background.
+    > [!NOTE]
+    > The MARS Agent triggers SFC /verifyonly as part of the prechecks before every system state backup. This is to ensure that files backed up as part of System State have the correct versions corresponding to the Windows version. Learn more about System File Checker (SFC) in [this article](https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/sfc).
+    >
 
 After the initial backup is completed, the **Job completed** status appears in the Backup console.