Download page Applying the Operating System in SCCM.
Applying the Operating System in SCCM
Right-click the newly created Task Sequence and choose Edit > Apply Operating System.
Activate Access content directly from the distribution point in the Options tab.
Set the Destination to Specified disk and partition with disk 0 and partition 1 in the Properties tab
Go to Assets and Compliance > Devices > Import Computer Information. Select Import computers using a file if you have a CSV file with MAC addresses and host names of the target devices.
Right-click the task sequence and select Deploy.
Choose a collection to deploy the image to.
Select Only media and PXE in Deployment Settings > Make available to the following.
You are now ready to deploy the image via PXE in the next step.