Hello. I'm having this problem with dad's older laptop. He asked me to reinstall his windows. So i found some windows dvd at home a started booting installation. I formatted disks when installing. But then mid installation i got some error. Maybe DVD was wrong or something. I don't remember. So i decided to download windows and put it on DVD a boot it. But since then im only getting this error "BOOTMGR is missing. Press ctrl+alt+del to restart". Of course i tried restarting several times,but nothing happened. I changed boot priority to dvd,hdd. Still same. Basically i can't do anything. Only this error is appearing. There was windows xp before on that laptop.