Assuming you made a recovery disk from Windows a while back.... It's hard to say at this point what happened.
You can
download a Surface recovery image from Microsoft and make a new recovery disk.
Save the file to disk and Extract all the contents to a folder.
Format a USB drive Fat32.
Select all in the extracted folder and Copy
Paste that into the root of the formatted USB.
WAIT... Do not remove the USB
Eject the USB, if it fails eject it again, repeat until success or Reboot.
Some USB drives have hidden partitions which might need to be removed. Use Diskpart clean on it if necessary then format the drive Fat32.
Remove any other USB drives or devices and also remove installed micro SD cards.