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I had a Windows 8.1 and Ubuntu (probably the latest version) dual boot. I decided to delete the Ubuntu OS and proceeded to delete the Ubuntu disk partition. I then deleted the Linux boot loader. However when I access the boot menu of my computer I still find the Ubuntu options. So I suspect that some of the Ubuntu memory partitions in my Disk Management are still intact.

Here is a picture of the view in my Disk Management before I deleted the 30.00 GB Healthy (Primary Partition) which I know was definitely Ubuntu.

I now suspect that the 15.01 GB Healthy (Recovery Partition) might also be Ubuntu but the 100 MB Healthy (EFI System Partition) is a mystery to me. When right-cliking either one I only get the option "Help" but not "Delete".

Which partitions are Ubuntu and how can I be sure before deleting them?

user638757
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2 Answers2

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before I deleted the 30.00 GB Healthy (Primary Partition) which I know was definitely Ubuntu. I now suspect that the 15.01 GB Healthy (Recovery Partition) might also be Ubuntu but the 100 MB Healthy (EFI System Partition) is a mystery to me. When right-cliking either one I only get the option "Help" but not "Delete".

Most certainly the 30.00 GB partition was Ubuntu, because the others are clearly something else. It's not recommended to mess with the EFI System Partition, so it's not surprising that potentially dangerous operations are disabled there, and that's why you cannot delete it.

Which partitions are Ubuntu and how can I be sure before deleting them?

You can delete the 30.00 GB partition and either use the space from it to extend the data partition labeled D:, or create a new partition from it. In the latter case, formatting it will delete Ubuntu's data.

janos
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I suggest downloading some Linux Live CD and checking either the content of those partitions or at least file system (can easily check with GParted or KDE Partition Manager). If it's ext4, btrfs, xfs, etc then they are Linux partitions.

Andrius Štikonas
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