Let me know what PERC controller you have (H330, H740P, etc.) if the issue persists. Use this in WinPE as a replacement for raw ZTIDiskPart:
diskpart list disk select disk 0 clean convert gpt exit Then restart the deployment task sequence. In your MDT/SCCM task sequence, insert a step to clear the disk via PowerShell:
Hi there – this is a common Dell deployment issue. ZTIDiskPart is failing because Disk 0 has a protected partition, old RAID config, or is offline. disk 0 cannot be formatted in ztidiskpart dell
I have broken this down into three formats: Option 1: Troubleshooting Guide (For a Blog or Internal KB) Title: Fix: "Disk 0 Cannot Be Formatted" in ZTIDiskPart on Dell PowerEdge Servers
select disk=systemdisk (requires custom variable) Alternative: Set an MDT variable OSDDiskIndex based on WMI query for SELECT * FROM Win32_DiskDrive WHERE InterfaceType != "USB" . Outdated firmware can cause the RAID controller to report the disk as "write-protected." Update using Dell SUU (System Update Utility) or Lifecycle Controller. Option 2: Forum/Support Chat Response User: "Help! My Dell PowerEdge is failing at 'disk 0 cannot be formatted in ztidiskpart' during Windows deployment." Let me know what PERC controller you have (H330, H740P, etc
Dell PowerEdge (Rx40, Rx50, Rx60), Dell Precision Workstations, Windows Deployment Services (WDS), Microsoft Deployment Toolkit (MDT).
Get-Disk | Where-Object Size -GT 100GB | Clear-Disk -RemoveData -Force This ignores USB keys/SD cards. ZTIDiskPart is failing because Disk 0 has a
Get-Disk -Number 0 | Clear-Disk -RemoveData -RemoveOEM -Confirm:$false Do not rely on Disk 0 . Modify your ZTIDiskPart.wsf or custom script to select the disk by size (e.g., the largest physical disk):
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