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I downloaded 64bit Ubuntu and I put it on my USB. It is bootable, and BIOS is configured to boot from it. But when I turn on the laptop with USB in it, it says:
Bootmgr is missing. Press Ctrl+Alt+Del to restart.
I have windows 7 64bit installed and I want to keep it. (dual boot or something)
Device: HP PAVILION G7 1303