So my girlfriend's Laptop is really slow. It's a HP Notebook 15 and yeah slow. I don't plan on getting an SSD and just focusing on removing stuff and updating. Her laptop takes forever to update so I'm working on that. What catches my attention is her HDD is partitioned into 4 pieces. It's a 1TB HDD and the primary partition is the one that has 980gb available, which is the C: drive. The D: drive is the recovery drive, and it has 18gb total with only 2gb remaining. So 16gb is used up essentially. I'm wondering if I have to do something with her HDD, help?