Hey nLiters!!! First time ever that I wanted to actually alter an iso and what do I find!? I feel very nLitened to have landed here. What a piece of software!!! Kudos and Thanks to the Author and contributors!!! So I have this old Proliant ml115 system from back when and have dusted it off to play around with. Its factory install was W2k3 SBE x86. I have been trying to get XP 64 and/or w2k3x64 ent installed for some time with no luck. It would just hang there at the "Setup is starting Windows..." screen I finally figured out I need to add the required device drivers to the iso as I have no "A: drive:" to insert floppy disk into. (ahh, the good ol'days...) That's how I landed here and found it quite simple to incorporate the ml115 specific drivers into the install. Specifically the nVidia kForce SATA drivers. The install no longer hangs (good), but now after ~30 seconds BSOD (bad). Its the IRQL_NOT_LESS_THAN_OR_EQUAL error on USBPORT.SYS. So I did the research, found many years and annals of forum posts on this subject. I eventually rounded up 4 different KBs: KB914961,KB918005,KB925528,KB949764 I tried each individually and then all together and let nlite sort it out. Same results So, what is USBPORT.SYS's problem and why is it harshing my mellow!? Is there a fix out there that could work for me!? If not, can I disable USB install? I looked for the a USB host controller/etc in components/services to remove but could not identify anything.. Anyone? Your help is greatly appreciated. Please find attached my system info and nLite info of ISOs I am working with. Thanks! Cheers