I have this disk setup:
Where Partition 3 is windows installed and I reduced its size by 31GB, which is the new free space (Espacio Libre 31GB). Now, I need to add those 31GB to Partition 7, but I dont find any way. I have tried with a bootable USB ubuntu but it needs to install a new Ubuntu when I can't uninstall the current one. In windows I would use a program to just move the free 31GB space to the partition I want, clic OK and it's done!. But here in Ubuntu is blocked, neither I find an alternative on the internet.
Any suggestions?