I seriously messed up my dual boot system.

I had windows 8 installed alongside Ubuntu 13.10, and everything was working fine with GRUB. I decided to get fancy and tried to install EasyBCD, but messed stuff up. Here is what I am working with:

```
401MB of Unformatted space
/dev/sda3 NTFS Windows Reserved space
/dev/sda4 NTFS Windows partition
/dev/sda5 ext4 Ubuntu partition
/dev/sda6 linux-swap

```

If I remember correctly, there was a fat32 partition in the Unformatted region, but I think I deleted it.

When I do update-grub on the Ubuntu partition, it does not even see the Windows 8 partition, because I think I deleted the bootmgr image.

I have both a Ubuntu install disc and a Windows 8.1 install disc.

Any help??