one workaround can be a live Linux Distro like Lubuntu, you just need to boot it from an USB flash drive and once at desktop, browse to the drive that need the files delete.
1) http://cdimage.ubuntu.com/lubuntu/releases/17.04/release/lubuntu-17.04-desktop-amd64.iso
2) download Rufus:
http://rufus.akeo.ie/?locale=en_US
plug your USB flash drive, run Rufus then:
select ISO image from the dropdown menu near "Create a bootable disk"
click on the little icon on the right and browse to the windows 10 downloaded iso file
as Partitions scheme select "GPT partition scheme for UEFI"
as File system select "FAT32"
click on Start
wait until it finish, then uplug your USB flash drive
4) plug your USB flash drive and at boot press F12 (if F12 doesn't work, see if it auto-recognise the USB flash drive or press F2 to enter BIOS and enable F12 boot menu under BOOT tab), choose the USB flash drive as bootable device