add step

Author: David Curwin

articles/backup/backup-azure-mars-troubleshoot.md

@@ -86,12 +86,14 @@ We recommend that you check the following before you start troubleshooting Micro
 - The backup service will mark these files as failed in the log file, with the following naming convention: *LastBackupFailedFilesxxxx.txt* under the *C:\Program Files\Microsoft Azure Recovery Service Agent\temp* folder.
 - To resolve the issue, review the log file to understand the nature of the issue:
 
-| Error code             | Reasons                                             | Recommendations                                              |
-| ---------------------- | --------------------------------------------------- | ------------------------------------------------------------ |
-| 0x80070570             | The file or directory is  corrupted and unreadable. | Run **chkdsk** on the source  volume.                             |
-| 0x80070002, 0x80070003 | The system cannot find the  file specified.         | [Ensure the scratch folder isn't full](https://docs.microsoft.com/azure/backup/backup-azure-file-folder-backup-faq#manage-the-backup-cache-folder)  <br><br>  Check if the volume where  scratch space is configured exists (not deleted)  <br><br>   [Ensure the MARS agent is excluded from the antivirus installed on the machine](https://docs.microsoft.com/azure/backup/backup-azure-troubleshoot-slow-backup-performance-issue#cause-another-process-or-antivirus-software-interfering-with-azure-backup)  |
-| 0x80070005             | Access Is Denied                                    | [Check if antivirus or other third-party software is blocking access](https://docs.microsoft.com/azure/backup/backup-azure-troubleshoot-slow-backup-performance-issue#cause-another-process-or-antivirus-software-interfering-with-azure-backup)     |
-| 0x8007018b             | Access to the cloud file is  denied.                | OneDrive files, Git Files, or any other files that can be in offline state on the machine |
+  | Error code             | Reasons                                             | Recommendations                                              |
+  | ---------------------- | --------------------------------------------------- | ------------------------------------------------------------ |
+  | 0x80070570             | The file or directory is  corrupted and unreadable. | Run **chkdsk** on the source  volume.                             |
+  | 0x80070002, 0x80070003 | The system cannot find the  file specified.         | [Ensure the scratch folder isn't full](https://docs.microsoft.com/azure/backup/backup-azure-file-folder-backup-faq#manage-the-backup-cache-folder)  <br><br>  Check if the volume where  scratch space is configured exists (not deleted)  <br><br>   [Ensure the MARS agent is excluded from the antivirus installed on the machine](https://docs.microsoft.com/azure/backup/backup-azure-troubleshoot-slow-backup-performance-issue#cause-another-process-or-antivirus-software-interfering-with-azure-backup)  |
+  | 0x80070005             | Access Is Denied                                    | [Check if antivirus or other third-party software is blocking access](https://docs.microsoft.com/azure/backup/backup-azure-troubleshoot-slow-backup-performance-issue#cause-another-process-or-antivirus-software-interfering-with-azure-backup)     |
+  | 0x8007018b             | Access to the cloud file is  denied.                | OneDrive files, Git Files, or any other files that can be in offline state on the machine |
+
+- You can use [Add Exclusion rules to existing policy](https://docs.microsoft.com/azure/backup/backup-azure-manage-mars#add-exclusion-rules-to-existing-policy) to exclude unsupported, missing or deleted files from your backup policy to ensure successful backups.
 
 ## Failed to set the encryption key for secure backups