Sorry, but some of your information is incorrect.
First, the partition limit is MBR-formatting, not Windows. With MBR-formatted drives, you can only have FOUR (not five) upper-level partitions, but one of those can be an Extended partition, and it can contain many Logical partitions.
Second, the two main Windows partitioning schemes are MBR and GPT -- and from the information you presented, it looks like your drive is already formatted GPT, and with that, you can have LOTS of partitions, since GPT is not subject to the partitioning limit of MBR formatting.
Third, there is no point in removing the 128MB partition, as it's taking up little space.
If you want to do repartitioning, instead of using Windows own tools (which are primitive), consider using this tool: Free Partition Manager Software - AOMEI Partition Assistant Standard
Good Luck