1: hp laptops are easy to work on - one back panel and everything is accessible. Some screws are under the rubber feet 2: m.2 ssd, most likely a 2280 nvme, which is almost all of them. Open the laptop and measure the length of the ssd to confirm. They come in 80, 40, and 30mm lengths. Get a 1TB minimum. 3: Upgrade that 8gb ram to 32gb (2x16gb). Assuming this is a clearance laptop with ddr4, that 8gb it has now is not enough for Win11 and daily use - Windows takes up to 5GB on its own, the remaining 3 will be eaten by a browser tab in chrome or firefox. 4: look up your hp model on their website and get the service manual. It shows you how to rebuild the laptop from the frame up. 5: While you’re there, look at the specs - what kind of ram, how much it accepts, and what ssd it has.