WARNING YOU CAN REALLY MESS UP YOUR COMPUTER IF YOU DON'T FOLLOW THESE INSTRUCTIONS CAREFULLY, IF YOU DON'T FEEL COMFORTABLE DOING THIS THEN I SUGGEST YOU DON'T, ALSO I SUGGGEST YOU BACKUP ALL YOUR DATA BEFORE YOU BEGIN
- go to start and type
cmd
(this is called command prompt) - In command prompt type
diskpart
and hit enter - type
list disk
and hit enter - From the list of disks find the one you want to work with (I believe in your case there is only one so it should be easy)
- once you find the drive you are looking for type
select disk'numberofdrive'
- now type
list partition
and find the partition you want to work with - once you have identified the partition in question type
select partition'numberofpartition'
- now type
delete partition
(WARNING ONCE YOU DO THIS THERE IS NO GOING BACK) and hit enter, if it says "cannot delete a protected partition..." usedelete partition override
(Note you will also have to repeat these steps with the partition in front of the recovery partition if you plan on extending the system volume) - once it is finish type
exit
and hit enter - go back to diskmanager
- right click on the C: volume and click extend