>>1420128>the amount of space is way too low for me- buy a ~1TB external drive
- buy a ~16GB USB stick
- buy an SSD*
- create a "system image backup" on the external drive
- when it asks you if you want to make a boot disk, you say yes, and make it on the USB. Alternatively, use the media creation tool to make the USB into a windows installer
- shut down the computer
- swap the SSD following the instructions in the service manual**
- boot from the USB
- "troubleshooting options"-->"restore backup"
- wait for the computer to reboot
- expand the windows partition in disk management
You now have plenty space, you have a backup in case something goes wrong, and have spent less than $150. Don't dismiss this, it's really not difficult to change the SSD on your computer, and because you're not overwriting anything you won't lose your data.
optional:
- buy usb3/nvme enclosure
- put old ssd in it
- you now have a fast USB stick
* you need a 2280 m.2 drive, ideally nvme but sata will also work. Here's a list, change the region to whatever country you're in by clicking the little person in the top right
https://pcpartpicker.com/products/internal-hard-drive/#D=1&A=900000000000,22000000000000&t=0&f=122080&sort=ppgb&page=1**
http://h10032.www1.hp.com/ctg/Manual/c06510442.pdf 
