Disks missing in Windows installer

Disks appear to be missing in the installation wizard after creating a multi-disk instance from a Windows ISO. For example, only seven of the disks are listed.

Cause

Although all disks are correctly presented to the instance and will be present in the instance after installation completes, the Windows ISO does not recognize more than seven.

Solution

If the boot disk is listed, perform the installation, and all the disks will be present in the instance after it completes. If the boot disk is not listed, edit the instance profile to delete disks until seven or fewer remain, reboot the instance, and perform the installation; then re-add the disks after installation completes.