I'm having problems with UBCD1.2 freezing during boot on the first screen after the Ultimate Boot CD progress bar finishes at the bottom. The screen that dies says windows xp with it's own bouncing progress bar. It bounces back and forth a few times on the bar and then goes to a black screen then hangs. My machine is a Clone AMD Thunderbird 1.0ghz with 512mb DDR memoy, PNY Verto Geforce FX 5200 AGP 128mb DDR, Samsung CDRW 52/34/52 + DVD Read 12x, Soundblaster Live! 32bit soundcard, Linksys LTNE100x PCI NIC, and EPOX MotherBoard with VIA bridge/agp chipset. Oh HD if it matters is an ATA 133 WD 80GB as one large NTFS partition. This is How I created the CD. I copied the xp pro cd including hidden files and hidden operating system files to my hd to c:\PE_BUILD\XP_CD. It is early xp with no service pack. I extracted the xp sp1a file to c:\PE_BUILD\XP_SP1A. I ran c:\PE_BUILD\XP_SP1A\Update\update.exe -S:C:\PE_BUILD\XP_CD. It said it transferred successfully. I extracted barts new pe to C:\PE_BUILD\PE. I deleted the plugins folder and extracted the newest WinUBCDV12.exe file to the same directory and overwrote the existing files. I then ran pebuilder.exe and did the prompts just as instructed. It ran for a minute and created the iso file in C:\PE_BUILD\ISO. I then burned this as an ISO with nero 6 pro with no burn errors reported. I put the CD in and rebooted. It got to the xp splash screen bounced the progress a time or two then turned black and froze again. No HD or CD Led activity. Bad disk, bad build, or bad hardware? I can run knoppix and other ramdisk boot CD's with no problems. I have no other hardware at the time to try it on. Please post any suggestions. I'll try burning it again and cross my fingers hoping it was just a bad burn.

I had the same on my first attempt, burn't a few more disks, still the same response, I read on the 911 forum that it maybe down to the hard drive itself, so I disconnected my hard drive and it started ok. The problem after a bit more research was that I had GoBACK and Partition Magic installed on the hard drive which was causing problems. Do you have any of the above software installed?, try removing the hard drives and see if that helps.

I have partition magic installed so I will try disabling the drives in the BIOS and reattempt. I went into work for awhile this morning so I took it with me and tried on a machine or two while I was there. Same response. I even tried using the regular Bart's PE with just default plugins and still same problem. I'll let you know what happens.

Tried and it cannot boot from CD. It cannot find NTLDR

You probably have a bad slipstreamed XP installation. It looks like you did it OK but maybe something screwed up somewhere, who knows. I would suggest you use the program on the Downloads page, AutoStreamer, to create a good XP SP1 iso, burn that to a CD, then extract that to the HD and try it from there. Otherwise, I'm not sure why it would be doing that. You don't have a different language other than English for the OS do you?

Why burn it to CD use daemon tools and mount it, very quick at building the wubcd like this. I tried it this way at home to test the beta.

Or use daemon and extract the contents.

Well, might as well have a slipstreamed XP SP1 CD anyway for later (and backup reasons). Then also when it comes out, do a SP2 slipstream and then you're good to go. Like I said, I'm a person who always puts stuff on CDs as I don't want all of that crap on my HDs. But if you have like 50TB like stidyup, then leave it on your HD and have fun. I just don't use XP SP1 (with most other CDs) enough to have them mounted on my computer.