If you have installed Windows in UEFI mode, you can call the windows loader loader directly typing
FS0:\EFI\Microsoft\Boot\bootmgfw.efi Enter into the EFI shell. If this isn't found try
FS0:\EFI\BOOT\BOOTX64.EFI (case doesn't matter).
If you don't find either on volume
FS0: then you can try looking for it on other filesystems until you find the one which contains the EFI partition with the Microsoft loader.
Volumes are in the format
FS3: etc. As the commands
ls work in EFI shell (see EFI SHELL COMMANDS - quick reference) to see what is on a volume type:
FS1: Enter do change to volume FS1: (note the
ls Enter to list files and directories in root of the filesystem
cd EFI Enter to change to directory
ls Enter to list files and directories in
When you find your bootloader you run it by just typing the name (including the
.efi suffix) into the shell prompt.
If you have legacy BIOS installation then Clover will not boot it. You could download rEFInd-flashdrive an put this on a USB key as described in its documentation. If you then boot that it should be able to automatically detect and boot legacy Windows installations.