|For a start turn off CAPS LOCK - it's considered to be shouting and many people will just ignore you.|
In theory what you want to do is easy in Windows 7, but in practice it can easily go wrong so the first thing you need to do is back up any important data in the 'C' drive (and the 'f' drive if necessary)
Then click 'start', right-click 'computer' select 'manage' and under the 'storage' section select 'disk management'. Right-click the 'f-drive' part and select 'delete'.
If the area is now shown as 'unallocated' then you can now click the 'c' drive and select 'extend'. If the area is shown as 'free space', right click it again and select 'delete partition' - this should turn it into 'unallocated and you can extend the 'c' drive.
However, I have had instances where this hasn't worked and either the deletion brings up errors or you don't get the 'extend' option. In this case your best bet is to use a third-party tool like the free MiniTool Partition Wizard which has worked most of the time for me. However I have had a couple of times where it totally fails and a reinstall is required so do the process at your own risk.
"I've always been mad, I know I've been mad, like the most of us..." Pink Floyd