You need option 60 in DHCP serve inorder to run sccm task sequence to do the imaging process for windows. if you don’t see the option 60 on the dhcp server you need to add them manually.
To add Option 60
From the command line on the DHCP server,
netsh dhcp server add optiondef 60 PXEClient STRING 0 comment=<userDefined> set optionvalue 60 STRING PXEClient show optionvalue all