Hello everyone, First of all I wanted to thanks of the wonderfull resource here. so MANY valuable information around.. But I came with a problem here, for few days I am trying to make a bootable USB with ISO's on it... Why ISO? Well, if I decide to replace/add some new ISO's - it would be very easy... I also often create different CDs using nlite, so no need to re-create disks etc..etc... So after researching I have found, that I need grub loader, since grub can work with images... After long testing, reading forums and trying examples, I have foudn one, wich let me at least launch the setup, it is: title Boot Disk Image xp1 map (hd0,0)/xp.iso (hd32) map --hook root (hd32) chainloader () Using this, when I try booting, it asks me 'Press any key to continue to boot from CD...' After I press 'any key', it starts loading drivers, but when it comes to show hard disks, I get BSOD, with error number: 0x0000007b. While I tried burning same image on the CD, and it worked fine... Any information is greatly appreciated... Thank you! Jaroslav