An administrator is building a new Windows VM on a Nutanix AHV cluster.

The correct answer isC. Mount and install the VirtIO drivers.

When installingWindows OSon aNutanix AHV VM, the default virtual disk controller uses theVirtIO interface, which isnot natively supported by Windows installation media. As a result, during the OS installation, the virtual disk will not appear unless theVirtIO drivers are manually provided.

Required Steps:

Attach theVirtIO ISOto the VM.

During the Windows installation, click“Load Driver”.

Browse to the mountedVirtIO ISOand select the appropriate storage driver.

Once loaded, the installer will detect the virtual disk.

Clarifications:

A (Add a second disk):Irrelevant; the issue is driver recognition, not disk quantity.

B (Enable Turbo Mode):Related to performance, not disk detection.

D (Install Nutanix Guest Tools):Doneafter OS installation, not before or during.

Prism UI Navigation Path:

VM > Edit > CD-ROM > Mount ISO → Select VirtIO ISO

Official Reference:

Nutanix AHV Administration Guide – Creating Windows VMs

Nutanix KB #5967 – AHV: Windows Installation on VirtIO

Excerpt: “If the disk is not detected during Windows installation, the VirtIO ISO must be mounted and the appropriate storage controller driver manually installed.”