Phantom Account

[hostag 0]

Someone has created a phantom account on my computer. I have tried many times to remove the phantom account but it keeps coming back. I live alone and no one else has access to my computer, I do not allow anyone to access my computer. the account name is weird. I'm I have no idea how this person obtained access to my computer and I need help removing it from my computer. I also notices some files were created that have the phantom account name in them. The phantom account name is ktsxoniqjihq. Can anyone help me with this issue. No one has stolen my computer its a desk top and I'm using it right now.  I have tried to used the snip it tool to show you but that tool doesn't seem to want to work for me.

[Marcos 5,070]

A phantom account is created when you enable Anti-Theft. Do you mean that you didn't enable it after installing ESET?