How can I boot into Windows from GRUB rescue without a CD drive?

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http://askubuntu.com – This is my situation: I Installed Ubuntu without a CD (using A USB) Dual boot installation (Windows 7+Ubuntu) I did not like the installation and decided to boot into Windows and delete the Linux partitions, but I forgot to fix the mbr from within Windows. Now, when I boot, I am stuck in the GRUB rescue limbo. How can I boot into Windows from GRUB rescue? I cannot boot from CD because I don't have a CD drive, therefore the usual solutions (recovery CD etc) do not work. Any hints? Is there a way I can maybe do this through a USB? (HowTos)