From admin console, run
diskpart
then:
DISKPART> list disk
DISKPART> select disk 5
Disk 4 is now the selected disk.
DISKPART> list partition
  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 2    Primary            110 GB  1024 KB
  Partition 1    Recovery           450 MB   110 GB
DISKPART> select partition 1
Partition 1 is now the selected partition.
DISKPART> delete partition override
DiskPart successfully deleted the selected partition.
DISKPART> list partition
  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    Primary            111 GB  1024 KB
Recovery partition should be deleted. Now you can expand the partition using disk manager gui.