Resize Windows partition and increase LL partition.

[Moltke]

Hi everyone! Hope you're all having a nice life! A piece of advice please. I'm dual booting Windows 7 and Linux Lite 3.6. LL's partition has only 30gb, but the more I use LL the more I like it and now I want to increase it's size by taking it from Windows'. I've been googling for this and so far every piece of info I've found  says I have to boot from a live cd/usb and do it from there. I also searched the forum but nothing was even closer to what I want to do. I think I have to boot  into Windows and resize it to free some more space for LL, what's not clear to me is whether it'll be possible to assign this unallocated space to LL. Is that possible? Also, after resizing Windows' partition, can I resize LL's partition from within it? Or do I have to boot from a Live usb and do it from there? Thanks in advance for taking the time to answer!