To change the reward address on Windows:

- Stop your wallet
- Go to %appdata\X3C
- edit (notepad) masternode.conf
- at the end of the line, right after the final 0 or 1, add a space, then the reward wallet address, then a space, then the number 100
- save the file
- start the wallet


The MN rewards should now go to the specified address.

If you still have issues, look me up on Telegram or Discord and I'll hook you up.