I have no expirience with EasyBCD at all, so I can't help you with that. But there are multiple ways to achieve the same goal.
But there are 2 things you can do here:
Either use a windows system repair cd/dvd, which you can make in windows:
Making a repair cd/dvd
Open Backup and Restore by clicking the Start button, clicking
Control Panel, clicking System and Maintenance, and then clicking Backup and Restore.
In the left pane, click Create a system repair disc, and then
follow the steps. If you're prompted for an administrator password or
confirmation, type the password or provide confirmation.
To use the system repair disc
Insert the system repair disc into your CD or DVD drive.
Restart your computer using the computer's power button.
When booting press F12, to select boot devices and select cd/dvd drive.
If prompted, press any key to start the computer from the system
Choose your language settings, and then click Next.
Select a recovery option, and then click Next.
And now the disk will check what to do
Or you could always download and use Resc-a-tux.
This is a live cd with a primary goal: Restoring grub/installing grub. It's a nice program which I used after windows just removed my grub without asking, and it worked like a charm.
You can also use it to boot just windows, or any OS.
So just removed the Ubuntu partition, and then run this live cd, it will fix your boatloader, and you are done in 5 mintes or less.
How to use resc-a-tux: Boot the disk(explained in step 1) and when it is booted, a windows will popup with the option:"Restore GRUB" or something similar.
Fixes GRUB and GRUB2
Regenerates Debian/Ubuntu grub menues
Check and fix filesystems
Fixes Windows MBR
Blank Windows passwords
Boot Info Script
Change Gnu/Linux password
Regenerate sudoers file