How to remove the Windows partition left after Bootcamp (os x)?

Question

Windows

Windows was installed on the Macbook through Bootcamp. After a complete reinstallation of OS X (with disk formatting), the WIndows boot partition remained.
That is, when rebooting with alt pressed, there are now three partitions:
ssd, recovery, windows,
but there is not a single mention of the windows partition in the disk utility.
Naturally, when choosing to boot the windows partition, an error immediately appears with a message from microsoft and the macbook does not respond to anything other than holding the power button

Answer 1

Try to dig in the direction of UEFI, it seems to me that there are traces left.