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# ggRock Client Machine Blue Screen - "inaccessible boot device"

### **Problem**

The following blue screen appears:

INACCESSIBLE_BOOT_DEVICE

![](https://ggcircuit.atlassian.net/wiki/download/attachments/15861259/undefined-Mar-31-2025-02-26-41-6784-AM.png?version=1&modificationDate=1743388042759&cacheVersion=1&api=v2)

### **Solution 1**

Review the[**Configure ggRock Guide**](https://help.ggcircuit.com/knowledge/configure-ggrock-deprecated), ensuring that your VHD image file was created correctly, including:

* [**Disable Secure Boot**](https://help.ggcircuit.com/knowledge/configure-client-machines-for-network/diskless-pxe-boot) (remove all keys)
* [**Configure BIOS in UEFI mode (fall back to legacy mode if this fails)**](https://help.ggcircuit.com/knowledge/configure-client-machines-for-network/diskless-pxe-boot)(Storage and PXE boot settings)

Additionally, as a troubleshooting step it can be helpful to boot the image in a VM with the following settings:

* [**UEFI Mode**](https://help.ggcircuit.com/knowledge/virtual-machines)
* [**Local Drives Mode**](https://help.ggcircuit.com/knowledge/virtual-machines)

### **Solution 2**

Ensure your Windows OS is correctly configured, including:

* [**Disable Windows Updates**](https://help.ggcircuit.com/knowledge/disabling-windows-updates) (it is important to do this before you make your VHD with the ggRock IC tool)
* [**Disable Defragmentation**](https://help.ggcircuit.com/knowledge/disabling-defragmentation)

### **Solution 3**

Ensure that the hard drive or SSD has been removed from each Machine.

### **Solution 4**

If your center has Machines with multiple different Network Cards or Motherboards, it is necessary to capture information on the network card from each different Motherboard/Network Card using the ggRock IC Tool. See the "[**Adding a New Machine Type to a ggRock Image using the ggRock Seamless Boot Procedure**](https://help.ggcircuit.com/knowledge/adding-a-new-machine-type-to-a-ggrock-image-using-the-ggrock-seamless-boot-procedure)" guide for detailed steps.

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