Problem:
Power device on
Press F12 to PXE boot from NIC
Obtains IP from DHCP range and can see bootfile name
Loads into PXE environment
Loads Windows Settings
Flashes something about Network Configuration/Initialisati
on then reboots
Troubleshooting:
My first thought is NIC drivers, have added and removed various x86 and x64 drivers for XP, W7 and Vista into the boot images and driver pool for reference.
Checked permissions/security and have added a service account that has appropriate access to all locations it could be referencing.
Plenty of forums online advise to enable F8 for troubleshooting as they point towards a NIC driver/network issue, however I cannot get this functionality to work, and
get the attached error which may mean that the Distribution Points are not updating properly, so the drivers/configuration are not filtering through. I am stuck as to what could be causing this.

Environment:
SCCM 2012 R2 running on Server 2012 with SQL 2012 on same VM
Dell Optiplex 960 with 4GB RAM - migrating from Windows XP 32 bit to Windows 7 64 bit
Successfully created boundary pointing to correct OUs in AD
Desktops appear in Devices under Assets and Compliance
Created specific Device Collection for W7 Deployment, placed desktop in this container
Created default x86 and x64 boot images
Captured Operating System Image in the form of WIM from syspreped desktop
Created Task Sequence with default settings (will customise when get process to this stage)
Created new Configuration Manager Client Package with default settings
Using W8 AIK files as recommended online
Distributed content to Distribution Points for availability
Create DHCP scope options 66 and 67
In fact the error is when trying to enable F8. Try enabling f8 without any drivers and see.