I have a 20gigs HDD, with 5MB devoted to linux. Now I want to remove the partition without affecting my existing windows partition which has some valuable files. I do not want to completely reformat ...

As mentioned, the issue might be occurring because the Windows bootloader is damaged. As a result, you are not able to boot into your Windows installation. If you can’t boot into Windows after ...

You may have installed Ubuntu or any other Linux distro on your PC alongside Windows. But maybe now, you don’t want to use Linux anymore. In this case, you will end ...