I have a sda7, which is where the OS was installed. It has the file system of ext4 with 8GB free of 25GB (with a key also). Aside from that I also has a sda4 of type ntfs which was my old data partition in Windows. I've taken about 20GB/102GB from it in order to extend sda7. But it seems that I can neither extend nor shrink the sda7, so the 20GB is useless. Is there any way to extend the sda7 WITH and/or WITHOUT using an USB?
I used GParted but haven't applied the operations yet