How to Increase Laptop Storage: 6 Ways From Free to Upgrade

Start free: clear space with Windows 11's built-in Storage tools or macOS's Storage recommendations before spending anything. If that's not enough, the real fix for most Windows laptops is a bigger internal SSD, followed by external drives and cloud storage for overflow.

Quick comparison

Method	Cost	Difficulty	Space gained
Storage Sense / Cleanup recommendations	Free	Easy	A few GB to 20+ GB
OneDrive/iCloud Files On-Demand	Free (paid tiers for more cloud space)	Easy	Frees local space, doesn't add real storage
Upgrade internal SSD	~$50-250+	Moderate (DIY) or paid install	Doubles or more
Add a second internal drive	~$50-200	Moderate, laptop-dependent	Varies (only some laptops have a spare bay)
microSD card	~$15-60	Easy	128GB-1TB, only on laptops with a slot
External portable SSD	~$70-250	Easy	500GB-4TB
External HDD	~$50-120	Easy	2TB-8TB, bulk/backup only
Cloud storage	Subscription, ongoing	Easy	100GB-2TB+, needs internet

1. Free up space first (it's free and takes 10 minutes)

Before buying anything, see how much of the problem software can solve.

Windows 11: Go to Settings > System > Storage. You'll see a used/free breakdown by category, plus a Cleanup recommendations section that flags temporary files, files already synced to the cloud, and apps you haven't opened in months. Turn on Storage Sense here too — it's off by default — so Windows automatically clears temp files and empties the Recycle Bin on a schedule instead of you doing it manually. The old right-click Properties > Disk Cleanup tool still exists in Windows 11, but Microsoft treats it as legacy; the Settings app does the same job with a clearer interface.

If you want to see exactly which folders and files are eating your space, a free visual disk analyzer like WizTree or TreeSize Free scans the drive and shows the biggest offenders in seconds. Skip general-purpose "PC cleaner" utilities — they mostly duplicate what Storage Sense already does for free, and some bundle software you don't want.

macOS: Apple menu > System Settings > General > Storage. Click through the recommendations (Store in iCloud, Optimize Storage, Empty Trash Automatically, Reduce Clutter) to see what's reclaimable.

See how to check laptop storage for the full walkthrough, including how much free space you should actually keep available.

2. Offload files to OneDrive or iCloud

OneDrive (Windows) and iCloud Drive (Mac) both support "files on-demand" — your files stay listed locally but the actual data lives in the cloud until you open them, downloading on the fly. This doesn't increase your total storage, but it frees up local space for the files you use every day without deleting anything. It's built into the OS, free at the tiers most people already have, and worth turning on before you consider a hardware upgrade.

3. Upgrade the internal SSD (the real fix for most laptops)

If cleanup only buys you a few gigabytes and you're back to "storage almost full" within weeks, the drive itself is too small. Before buying anything, check whether your laptop's SSD is even upgradeable using Technize's free SSD upgrade checker — it tells you whether your model takes a fast NVMe drive, is limited to older SATA, or has storage soldered to the motherboard.

A few things worth knowing before you buy:

• NVMe vs. SATA matters. A SATA M.2 or 2.5-inch drive tops out around 550MB/s; NVMe drives on modern laptops can hit several gigabytes per second. Don't buy an NVMe drive for a laptop that only supports SATA — it'll work, but at SATA speeds.
• Single-slot laptops need a clone or a fresh install. Most thin laptops have exactly one M.2 slot, so you either clone your existing drive to the new one with cloning software before swapping, or do a clean OS install after the swap. Cloning is faster; a fresh install avoids carrying over years of clutter.
• Older laptops may still use 2.5-inch SATA drives rather than M.2. Check the checker or open the case before ordering a form factor that won't fit.
• Soldered storage is now common, not rare. Most thin-and-light Windows ultrabooks and every Apple Silicon Mac ship with storage soldered directly to the logic board — there's no swap possible after purchase. If you're buying new and there's any chance you'll outgrow the base configuration, pay for more storage up front.
• NAND flash prices have risen sharply through 2025 into 2026 on AI-driven demand for data-center storage, which has pushed up SSD prices across the board. Budget more than you would have a year or two ago, and buy the larger capacity now rather than planning to upgrade again later — a 2TB drive purchased today may cost noticeably less over time than buying 1TB now and 1TB again in a year.

Related reading: is 256GB enough for a laptop and how much storage do I need on my laptop.

4. Add a second drive or a microSD card, if your laptop supports it

Some gaming laptops and larger workstation-class laptops have a spare M.2 slot or a 2.5-inch bay in addition to the primary drive — check your model's spec sheet or teardown guides to confirm before buying a drive you can't install. If there's a spare bay, adding a second drive is usually cheaper per gigabyte than an external SSD and doesn't take up a USB port.

If your laptop has a microSD or SD card slot, a card is a cheap, semi-permanent way to add storage for media, documents, or game installs that don't need top-tier speed. It sits flush in the slot so it doesn't stick out like a USB drive, though read/write speeds are well below even a budget SSD.

5. Go external: portable SSDs, drive enclosures, and external HDDs

For most people who don't want to open up the laptop, an external drive is the simplest upgrade.

• Portable SSDs are the best balance of speed and portability. The Samsung T7 and T9, and Crucial's X9 and X10 Pro lines, are widely reviewed current options — the T9 and X10 Pro use USB 20Gbps for faster transfers, while the T7 and X9 are cheaper and still much faster than any HDD. Check prices on Amazon: Samsung T9, Crucial X10 Pro.
• Old internal drive, new life: if you're upgrading your internal SSD, don't throw the old one away — a cheap USB enclosure turns it into an external drive. See Technize's best external hard drive enclosures for current picks.
• External HDDs are the cheapest option per gigabyte and fine for backups or bulk media you don't need instant access to, but they're slower and more fragile than an SSD for everyday use.

6. Use cloud storage as overflow

Dropbox, Google Drive, and OneDrive all offer a free tier plus paid plans for more space. It's a reasonable place to park files you don't need locally — photos, old projects, archives — but be honest about the tradeoffs: it's a subscription you pay indefinitely rather than a one-time purchase, and you need an internet connection to get at anything you haven't kept a local copy of. Treat it as a supplement to local storage, not a replacement.

What's not worth bothering with anymore

Swapping a laptop's DVD drive for a hard drive caddy used to be a popular trick, but it's a legacy option now — most laptops sold in the last several years don't have an optical drive to begin with. And while a USB flash drive is fine for moving files between machines, it's a poor choice for permanent storage: cheap flash memory wears out with repeated writes, drives get lost easily, and performance is far behind even a budget portable SSD.

Frequently asked questions

Can you add storage to a laptop? Yes, in most cases. Windows laptops with a socketed M.2 or 2.5-inch drive can have the internal SSD swapped for a larger one, and many also support external storage over USB. The exceptions are ultra-thin laptops and Apple Silicon Macs with storage soldered to the board — those can only be expanded externally. Use the SSD upgrade checker to confirm your specific model.

How do I increase laptop storage without deleting anything? Turn on Storage Sense (Windows) or Optimize Storage (Mac) to offload cache and temp files automatically, enable OneDrive or iCloud Files On-Demand so infrequently used files live in the cloud instead of on the drive, and add an external SSD or microSD card for new files going forward. None of these require deleting anything you already have.

Is it cheaper to buy an external SSD or upgrade the internal drive? An external portable SSD is usually the lower up-front cost and the easier route since there's no disassembly involved. Upgrading the internal SSD costs more per gigabyte once you factor in a compatible drive plus, if you're not doing it yourself, an installation fee — but it gives you faster everyday performance since the OS and apps run from the faster drive, not just your files.

The bottom line

Clear out temp files and turn on Storage Sense or Optimize Storage first — it's free and takes a few minutes. If you're still tight on space, check whether your laptop's SSD is upgradeable with the SSD upgrade checker and buy more capacity than you think you need, since NAND prices have pushed SSD costs up industry-wide. For everything else — photos, backups, files you don't need on hand daily — an external SSD or external hard drive enclosure paired with cloud storage covers the rest. See how much storage do I need on my laptop if you're not sure what capacity to buy in the first place.