I don't believe [that question][1] is a good example of a question that isn't about Ubuntu. Ubuntu is currently installed, the longhand way of reading the question could be: **What do I need to do to Ubuntu to get rid of Ubuntu and prepare for the reinstallation of Windows?**

And that might very logically have plenty of Ubuntu-related things in its answer. You might need to unmount the firewire matrix from /proc/, or defragment the boot partition, or patch the 802.11 antenna array for parity switching. **The person asking doesn't know.** That's why they're asking. In short, that the answer doesn't neccessarily need to be Ubuntu related, doesn't mean the question isn't on-topic, even if only tangentially.

I also have to think about this from the perspective of **what makes the internet —and AU— *better***. Neither deleting a furiously popular question with good answers or even just shoving it to another site (where its search exposure will suffer) accomplishes this. They're bad options that tick an administrative box.

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The [second example][2] is a better candidate for going elsewhere. It's as much about BIOS as anything else.

The [third example][3] is data recovery and with the current OS being Ubuntu so is on-topic here, IMO. At the very least options can be presented.

And the [last one][4] seems to be more about creating a bootable Windows USB. I'm not sure if that's from another Windows install or Ubuntu, so again, potentially on-topic.


  [1]: https://askubuntu.com/questions/133533/how-to-remove-ubuntu-and-put-windows-back-on
  [2]: http://askubuntu.com/questions/659803/no-os-not-able-to-install-tons-of-error-on-ubuntu-windows-arch
  [3]: http://askubuntu.com/questions/659595/ive-accidentally-deleted-my-windows-10-partition-how-can-i-get-it-back
  [4]: http://askubuntu.com/questions/659238/windows-7-install-usb-wont-boot-into-after-ubuntu-install