Call diskmgmt.msc and check it for disk/partition infos.
Call diskpart.
If disk id is 0 run
select disk 0
and
list partition
If your partition id is 3, run
select partition 3
delete partition override
Call diskmgmt.msc and check it for disk/partition infos.
Call diskpart.
If disk id is 0 run
select disk 0
and
list partition
If your partition id is 3, run
select partition 3
delete partition override