Hi Working on a friend's laptop, the hard drive bit the dust so I ordered a new drive. Installed Windows 7 on it using a bootable USB drive installation, as the optical drive on the machine also doesn't work (and he doesn't feel like forking over $150 to HP for a new one). Also, I don't have an external USB optical drive (can systems boot from those?). Either way, after a fresh install of Windows 7, rebooted once and everything is fine, it continues to download and install updates. After that, it goes to the "BOOTMGR is missing, Press Ctrl+Alt+Del to restart" message. I'm not sure if this a bug from using a bootable USB drive to install or not. Either way, here's what I've tried: Fixing it using Startup Repair (works temporarily, but reverts back to the error, and after a time or two, it isn't able to repair) Reinstalling Windows 7 AGAIN Re-creating the bootable USB install (and installing Windows 7 yet again) I'd like to know how to simply manually fix this problem once I'm booted into Windows, if that's possible. The drive I ordered is a WD Scorpio Black and the computer is an HP Pavilion DV6700. The only things I've installed on it before rebooting (and having the BOOTMGR missing issue) is Comodo Internet Security, Firefox, The KMPlayer (freeware media player) and K-Lite Mega Codec Pack. I'd also like to note that I'm having the same issue trying to install Windows 7 via a USB stick on another friend's computer (though it's not as crucial, as his optical drive works).