KB1491: Access is denied during Windows File Level Restore
https://www.veeam.com/kb149119.01.2012 · There are two ways to resolve this issue. First, log out, and log back in to the Veeam server as a user who has rights to read those files and folders you are attempting to restore, then perform the restore operation again. Alternatively, execute an "Other OS File Level Restore" of this machine. As the Other OS option is OS agnostic, it is ...