Hi everybody I've installed Vista RC1 starting from an exterbal dvd (Usb). The installation was fine (but at opposite of what is written it never restart during the procedure). Finishing the Expanding file (about 50 minutes) it goes on to next steps and at the end it restart automatically. At the reboot on prompt says "BOOTMGR is missin - Press Ctrl-Alt-Del to reboot)". So I'vre read many message regarding this trouble and I've tried to use the repair function from the dvd (it is really boring during the "Windows is loadin files" phase, about 30 minutes to go). I've chosen Startup repair , but no problems are found, it seems everything allright but rebooting the problem is still remain. So after ia new "Windows is loading files..." phase I've tried to use Command prompt and with a ScanOS it says this "Total identifies Windows installations:0". But in Startup Repair it finds th windows Vista on my Hd "C:". So I've tried to write a boot.ini manually but it does't works... So now I've 2 choices 1) Re-try a repair (but I'm skeptic about it) 2) Try a re-installation of o.s. Any ideas? Thanks in advance Ciao Gianfranco PS: Could be a problem regarding my dvd that is an external device on usb port? I don't know because it seems to works during every phases.