I have the boot mgr missing error on my windows vista and i have no recovery or installation disc. Also my cd drive is broken so i wouldnt be able to put it in there. I tried looking all over for the installation disc so i could put it on a flash drive. I also tried checking my bios for the boot order but it seemed that there was no boot order anywhere even though i looked all over. My computer is the compaq presario pc sr5450f. I also tried putting ubunto on a flash drive then trying to install it on that computer but the directions say to put the flash drive first in the boot order but i do not have a boot order. I tried anyways but i still get the error. Please tell me a way to fix this. Also please let it be free, i do not have any money.