Before you guys say anything, just let me tell you that I've searched the forum, found some posts about this and couldn't fix it, so I'll explain what I did: For now, I'm trying to "backup" a few and small files do a CD-RW (note, not a dvd) and burn directly to the cd with TI (currently using build 3567). With it, I include both the full and safe versions of TI. I can boot into the safe version without any problem, however, it doesn't recognize my dvd drive. Using the full version, I can't boot cause of the error on the topic title. I tried the "quiet acpi=off noapic" thing and also disabled "Legacy USB Support" on my bios and they both failed. I'm trying all this on my laptop and I didn't have any usb things plugged in besides my wireless mouse, however, I also tried it with the wireless receiver unplugged (usb legacy enabled and no acpi switch; should I try with any of these and the receiver unplugged?). The only other things plugged in, are the AC adapter and the lan cable that goes to my router, I don't think these have anything to do with the problem here... I suppose... How can I use TI in these conditions if I can't access the dvd drive to restore my backups? Anyway to fix? I didn't had time yet to test on the latest build, but will that make any difference?