[ubuntu] Cannot Boot into Windows 7 after installing and removing Ubuntu

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http://ubuntuforums.org – I'll start from the beginning... At first I installed ubuntu11.10 via wubi in windows and it failed. (See Here) Then I tried installing 11.04, 10.10 and 10.04 with wubi again. Only 10.04 worked. Next, I don't feel so good about ubuntu being an OS inside Windows but not being an independent OS So I uninstalled wubi and made a ubuntu 10.04 Live USB stick and installed ubuntu as a dual boot again. The first boot after installation worked great, so I decided to use Windows for a while. After I finished using windows after the second-boot after installing Ubuntu, I booted ubuntu again. And (Hardware)