After nine months of not having booted my Windows even once, I think it’s time to wipe the Windows related partitions once and for all and claim the space. The problem is I think the way my partitions are structured, it may not be that easy. I am assuming everything other than the two ext4 partitions will have to go. What do you think? r/linux4noobs -
Someone even suggested I nuked the whole thing and started again, which would be the absolute last resort and only when I ran out of space.
Everything with a lock means it’s mounted and in use. sda1, sda2, sda3 and sda4 should be safe to format, however as others have mentioned, booting into a live environment is the best course of action as it lets you freely move or extend partitions.
I suggest finding a thumb drive and flashing Gparted onto it.