When doing a PC reset, reset the files of all drives or only those of the drive on which Windows is installed?

I'm in the process of resetting my laptop and now there's a choice of whether I want to reset only the files of the drive on which Windows is installed or to reset the files of all drives. But I don't know exactly what that means and I don't want to go wrong. Can someone please explain to me what the two possibilities "would do"?

With such serious changes you always make a backup out of your own interest!

What is the difference in your case Reset types depend on the manufacturer, I would only "reset" the Windows drive unless a virus or trojan is causing the reset.

So it depends on why you want to reset your of

Only the files of the drive with Windows installation means that you delete all files except for Windows in the C: partition (in Windows 10 there's the Windows icon next to the hard drive icon). If you have more hard drives e.g. D: E: …, then these remain untouched and you can access them again after resetting.

The other option also deletes files from D: E:…