--- title: "Step 13. Specify Guest OS Credentials for Microsoft Hyper-V VMs" description: "After you upgrade to Veeam ONE 13, you must specify credentials of an account that will be used to collect data from Windows guest OSes on Microsoft Hyper-V VMs." canonical: "https://helpcenter.veeam.com/docs/one/userguide/upgrade_set_guest_os_credentials.html" breadcrumb: "User Guide > Installing Veeam ONE > Upgrading to Veeam ONE 13 > Step 13. Specify Guest OS Credentials for Microsoft Hyper-V VMs" dateModified: "2026-10-23" --- # Step 13. Specify Guest OS Credentials for Microsoft Hyper-V VMs After you upgrade to Veeam ONE 13, you must specify credentials of an account that will be used to collect data from Windows guest OSes on Microsoft Hyper-V VMs. If you do not specify guest OS credentials, Veeam ONE will not display guest OS data (in particular, data about guest disks) in monitoring dashboards, alarms and reports. For details, see [Step 6. Specify VM Guest OS Credentials](hyperv_guest_credentials.md).