When using HotAdd transport from a Windows proxy, it can make unwanted changes to HotAdded volumes. To prevent this, backup vendors and customers should disable Windows automount on the backup proxy.

To disable Windows automount

1

Start DiskPart.

C:\> diskpart
2

Disable automounting.

DISKPART> automount disable
3

Prevent any previously mounted volumes from being re-mounted the next time.

DISKPART> automount scrub
4

Exit DiskPart.

DISKPART> exit