Ah i wanted to try but my apc ups is about to die, i had money to buy ssd now i need to buy ups :/
EDIT. i tried to Extend again, now extend option disappeared, windows are crazy..
EDIT. UPDATE.
i had to delete partition I, too.
what i done, is deleted partition i and k
i was able to expand C with I and i expended them,
but was able to do anything with partition K, then i used EasyUS partition Software, i resize partition C and used the allocated space, so i made all partition into 1, then i shrunk the partition. mission successful,
thanks to all, helped lot.
this forum always have lovely people.