Merge pull request #49917 from genlin/master03

backup-azure-troubleshoot-slow-backup-performance-issue.md

Author: PRMerger6

articles/virtual-machines/windows/prepare-for-upload-vhd-image.md

@@ -14,7 +14,7 @@ ms.workload: infrastructure-services
 ms.tgt_pltfrm: vm-windows
 ms.devlang: na
 ms.topic: troubleshooting
-ms.date: 08/01/2018
+ms.date: 08/23/2018
 ms.author: genli
 
 ---