Solved remove the ubuntu boot option from my os list

I had ubuntu within my windows 7 earlier. Later when i installed windows 8, i formatted the partition ( E: ) in which ubuntu was installed, since the wubi uninstaller was not working. Still when i start my system, it shows ubuntu listed in the boot list. I tried to load it once. It gave an error. There is no error when i select the default windows 8.
Now i checked the boot option in the msconfig as per the thread, but only windows 8 is listed there, no ubuntu. But still it is listed in the boot menu. I tried the disk manager, the only partition without NTFS file system is the one with status "healthy (OEM partition)". I dont know whether its a ubuntu partition. And there is no option to delete it also. No other ubuntu partition. I want to remove the ubuntu boot option from my os list. How to do it?? Kindly help.

This must be a Dell system. Your bootmgr is in the recovery partition that does not have a drive letter. Here is one way to deal with it: Remove Grub - Restore Windows 7 - Windows 7 Forums

thanx a lot.. problem solved with EasyBCD..