Can't remove Kubuntu and ubuntu

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im Dutsh so my English is not so good

My laptop ''Inspiron 6400'' is instald with Windows Vista and i wanted to instal Kubuntu inside Windows and it workt all fine then i wanted to uninstal kubuntu so i did that......''done'' so i reboot.... Kubuntu still there, in OS boot list :o

What to de next?
''some help would be hot'' ;)
Kubuntu ''Ubuntu'' was folder in c: is removed.

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in the OS boot list:
Windows Vista ''works
Kubuntu ''removed but boots ubuntu
ubuntu '' boots but what it has booted....

in Dutsh
''er is geen basis bestands systeem''
er is geen basis bestands systeem gedefinieerd,
gelieve dit te herstellen vanuit het schijfindelingsmenu.
in English (Babel Fish)
' ' there is no basis file systeem' ' no basis file system has been defined, please this to repair from the disk classification menu.