Retrieving a computer's hash for intune from faulty or non bootable os

Technical Article: Retrieving a Computer’s Hash for Intune/AutoPilot from a Faulty/Non-Bootable Operating System

In the scenario where an operating system fails to load, retrieving a computer’s hash for Intune/AutoPilot can be essential for troubleshooting and management purposes. This technical guide outlines a step-by-step process to obtain the hash using PowerShell scripts and command-line utilities.

Step 1: Download the PowerShell Script

1.1. Utilize an elevated PowerShell session to execute the following command:

Install-Script -Name Get-WindowsAutoPilotInfo

1.2. The script can be sourced from the PowerShell Gallery at: https://www.powershellgallery.com/packages/Get-WindowsAutoPilotInfo

Step 2: Copy Script to USB Drive

2.1. Once downloaded, navigate to C:\Program Files\WindowsPowerShell\Scripts.

2.2. Copy the Get-WindowsAutoPilotInfo.ps1 file to a USB drive.

Step 3: Create .CMD File

3.1. Create a new file with a .CMD extension (e.g., Getintunehash.CMD) using a text editor such as Notepad.

3.2. Insert the following script block into the file:

@ECHO  OFF

echo Enabling WinRM

PowerShell -NoProfile -ExecutionPolicy Unrestricted -Command Enable-PSRemoting -SkipNetworkProfileCheck -Force

echo Gathering AutoPilot Hash

PowerShell -NoProfile -ExecutionPolicy Unrestricted -Command %~dp0Get-WindowsAutoPilotInfo.ps1 -ComputerName $env:computername -OutputFile %~dp0compHash.csv -append

echo Done!

pause

Step 4: Prepare USB Drive

4.1. Ensure the USB drive contains the following items:

   - Get-WindowsAutoPilotInfo.ps1

   - Getintunehash.CMD

Step 5: Boot into Command Prompt

5.1. Access the boot menu by pressing the F8 key before Windows starts.

5.2. Upon booting, when the Windows Setup dialog appears, simultaneously press Shift + F10 to open Command Prompt.

Step 6: Determine USB Drive Letter

6.1. Use the diskpart utility to identify the drive letter assigned to the USB drive:

   - Enter diskpart and then list volume.

   - Select the appropriate volume containing the USB drive (e.g., select volume 4).

   - Assign it a drive letter (e.g., assign letter=E).

Step 7: Execute Script

7.1. Navigate to the USB drive using Command Prompt.

7.2. Run the Getintunehash.CMD script.

   - This script gathers the AutoPilot hash and saves it to a CSV file named compHash.

Following these steps meticulously ensures the retrieval of the computer’s hash for Intune/AutoPilot, even when the operating system fails to load, facilitating seamless management and troubleshooting processes.