I bought a 2nd hand Compaq desktop from a guy and the windows program needed a new product key code which I did not have. Fast forward 1yr. I purchased a brand new ACER desktop computer which of course did not come with any disks. I cloned my copy of windows vista and tried to change the old computers windows xp to vista now I am getting a BOOTMGR is missing press CTRL+ALT+DEL to restart which loops over and over. I tried the HP online help but I was told that the computer that I have was made for a buisness not home use but I was able to use the computer like a home PC untill the it needed a product key. it would not even let me log on until I got one so as I said I tried to install Windows Vista and now the PC won't do anything the disk I cloned downloaded fine and verified but the Compaq is saying missing or corrupt. what do I do?:scared: