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I have two systems installed previously Windows 7 and Ubuntu. I was trying to reinstall Ubuntu and format the Ubuntu OS partition using a tool in Windows 7.

When I have Ubuntu ready on a USB stick and restart my laptop, it prompts me with the GRUB rescue screen. If I boot from USB to install Ubuntu, it just hangs.

Anyway, I messed up everything. So my question is how can I boot Windows 7 now?

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Another GRUB2 Rescue operation that you can do… – sarathkm Jan 20 at 12:20
Sorry typed twice – sarathkm Jan 20 at 12:22
up vote 1 down vote accepted

If you've got a Windows 7 Repair disc, just insert that, make sure your BIOS is configured to boot from the DVD/CD drive first, and then boot into your Windows Repair Console to get things fixed up.

This tutorial gives you an overview of how to use the repair tools on your Windows 7 Repair disc to fix the MBR so you can boot Windows 7 again.

Essentially, you're going to boot it into a command prompt on Windows 7 and then run the following commands:

bootrec.exe /FixMbr

Or, try the automatic "Start-up Repair" option to see if that works.

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thanks anyway.. – bingjie2680 Jan 13 '12 at 21:51

the problem solved. I followed this tutorial.

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Glad to hear you got it sorted! I was just a little late with my answer. :) – Mat Nadrofsky Jan 13 '12 at 21:31

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