Hello all:

I used to install ubuntu in a separate box or a virtual box on windows. A week ago I tried the windows installer of kubuntu, however I found that after the installation a dual booting menu was created, I don't like it so that I removed the kubuntu using the "remove application" applet from Windows 7.

Now I have two issues:
1. The dual booting menu is still there I can't get rid of it;
2. The windows start to have a blue screen issues from time to time and reboot. This is most annoying as it happens all of a sudden and in a few occasions in the middle of my work, like transferring a file or etc.

My windows system used to work quite stable before. Can anyone tell me how to completely remove kbuntu including the removal of the dual boot menu