Partitioning C: drive

Am trying to partition it but each time the maximum volume I get is 25gigs. I want more than 100gigs. Laptop is lenovo, 500gb. Any one who can help?

You are using minitool, easus or windows native partitioner? Kama ni native, iko na limitations ya vile unaeza administrate space in a drive with already partitioned space eg creating free unpartioned space can only be done in contigous area AFTER the partiton.

Jaribu minitool. It is tiny (easy to download) and free.

Ok let me download it.