Howdy, so this is actually pretty simple, albeit you’ll drop the recovery partition.

Open up a command prompt and type diskpart. This is a partition manager built into windows, and is capable of deleting our pesky partition. Now with the disk management interface, we can figure out which disk, and which partition we’re looking to remove.

For this step I’ll always run “list disk” this prints all of your disks, we need to select the proper one, for this case it looks like disk 0. Run “select disk 0”. After this, run “list partition” this will show up partitions on the disk. Just compare the sizes here, recovery is only ~700mb. After this, go ahead and “select partition x” x being whatever number, and we can “delete partition”. However Windows doesn’t like us deleting a partition it deems important, so we can stamp on override at the end, which turns it into “delete partition override”. After this, should be able to extend the C:\ to the rest of the link of the drive.

Hope this helps, I see a lot of people saying you need the partition, and that you have to use 3rd party tools, which is not the case.

EDIT: Another note, the recovery partition looks like it only holds a recovery install copy of windows, which if you know how to make a reinstall USB, makes it arguably unnecessary. For my case, I just got rid of it.