I recently got my first personal laptop, a Lenovo IdeaPad Slim 3, and I'm very new to computers. I'm trying to install a roughly 90 GB game, but the laptop's 128 GB drive already has about 106 GB used by Windows and preinstalled files. Is there an affordable way to add enough storage without opening the laptop? If internal storage is the better option, I'd appreciate a very beginner-friendly explanation of what I need and how installation works. The game is Honkai: Star Rail, and I'm not especially concerned about maximum graphics performance.
2 Answers
Your exact IdeaPad Slim 3 model determines whether you can replace the internal drive or add another one. Many versions use an internal M.2 SSD, but the number of slots varies. If there’s an empty slot, a repair shop can add a 512 GB or 1 TB SSD. If the current drive has to be replaced, the shop can clone the old drive so Windows and your files stay intact. A local computer repair shop may cost less than a large retail service counter.
You can also install an internal SSD yourself, but first look up the full model number printed on the bottom of the laptop and check its storage upgrade specifications. Don’t buy a drive based only on the words “IdeaPad Slim 3,” since different versions can have different layouts. For a first upgrade, an external SSD is the least complicated choice; avoid using a cheap USB flash drive for a large game because it’s generally slower and less durable.

If you replace the only internal drive without cloning it, the laptop will need Windows and your files set up again. An external USB-to-SSD adapter is usually needed to clone the old drive before swapping it.