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I installed windows 7 on my laptop at C:\, and then I installed ubuntu with a bootable usb stick, but when I restart my computer, it boot to windows 7 directly, there is no boot menu to select which os to boot.

what's the problem?

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you didn't install a boot manager? – Raystafarian Feb 20 '12 at 17:44
up vote 1 down vote accepted

You didn't mention which boot manager is your preference, windows or ubuntu. If you want windows to manage the boot menu, it wouldn't recognize ubuntu directly without a 3rd party boot manager like easybcd. If you want ubuntu to manager the boot menu, you need to load grub2. Here's one of many examples. If you later change your mind, you can repair your windows boot manager from the windows 7 install disk in repair mode.

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EasyBCD works for me. thanks in advance. – fredcn Feb 21 '12 at 14:00

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