How do I remove Grub Menu from the disk without Linux? When I boot from the disc out the string Grub Rescue. Previously, I installed Ubuntu 10.10 and randomly chose the wrong drive.
You need to boot your windows disc, and repair the master boot record from the recovery menu.
Your best and fastest option would be to download an rBoot ISO and burn it to a CD. (download via torrent)
Boot from it and select the bootable Windows partition. You will get logged into Windows.
In Windows, install EasyBCD. Open it. In the Deployment section, select write Windows 7 bootloader to MBR. Restart.
If all goes well, you'll successfully boot into Windows.