Help!

[John_Pawlikowski]

After I tried to uninstall my dual-booted Ubuntu partition on Windows, I accidentally deleted the wrong one. Now, I have a GRUB loader with a black screen. I have my old Ubuntu USB which I used in the first place, but I don't have a Windows DVD. What do I do? Help!

Thank you in advance,
John.

[oldfred]

If you did not otherwise damage Windows you can use Boot-Repair or command line to install a Windows like boot loader to the MBR.

How to restore the Ubuntu/XP/Vista/7 bootloader
https://help.ubuntu.com/community/RestoreUbuntu/XP/Vista/7Bootloader
https://help.ubuntu.com/community/Grub2/Installing#Fixing_a_Broken_System

But most fixes for Windows require a Windows repair CD or flash drive.

Make your own Windows 7 repairCD (not vendor recovery):
http://forums.techarena.in/guides-tutorials/1114725.htm

Windows 7 repair USB, Also Vista if service pack installed
http://www.intowindows.com/how-to-repair-windows-7-from-usb-flash-drive-repair-without-installation-dvd-disc/
http://www.webupd8.org/2010/10/create-bootable-windows-7-usb-drive.html

[John_Pawlikowski]

Holy crap, I somehow fixed by typing "exit" in the grub terminal. I now may run windows!
I still want to uninstall and reinstall ubuntu though.

[sammiev]

If you want to reinstall Ubuntu, just install over top.

You should see that option when you go to install Ubuntu.