Hi,
Thank you for posting in Microsoft Q&A forum.
1,Can we get any error? You can try to add the WinPE driver for the storage and network for Dell Latitude 7445 to have a try. Similar thread for your reference:
How to fix stop code: INACCESSIBLE BOOT DEVICE
2,Please check if your firewall / antivirus software is blocking traffic between the server and client.
3,Are you using MDT together? Can we PXE boot successfully for any computers?
Thanks for your time. Have a nice day!
Best regards,
Simon
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