If you are experiencing problems booting into WinPE 4.0 it may be because you are missing some NIC or Storage driver.
(For troubleshooting purposes also try to change the BIOS options from AHCI to IDE)
HP provides a sets of drivers specifically designed to work with WinPe 4.0
HP Elite 8300 SFF and HP 8200 SFF as now(December 2014) share the same package, named sp64529. This includes NIC and Storage drivers for both x86 and x64
http://h20564.www2.hp.com/hpsc/swd/public/readIndex?sp4ts.oid=5037932&swLangOid=8&swEnvOid=4131
http://h20564.www2.hp.com/hpsc/swd/public/readIndex?sp4ts.oid=5232853&swLangOid=8&swEnvOid=4131
the result of the drivers injection for x86 should be as image below:
\Program Files\Altiris\Notification Server\NSCap\bin\Deployment\BDC\bootwiz\Platforms\WinPE\x86\Drivers\CUSTOM\Drivers
If you are having trouble injecting the NIC drivers, clean the folders from the .exe file, as from article below:
Please find the ready-to-go \CUSTOM folder attached below. And if you are still having difficulties please log a case with support.
NOTE:
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