A slow laptop is often a full, tired SATA drive, not a “virus.” An NVMe or a bigger SATA SSD is the upgrade I reach for most. The way people blow it is cloning wrong and finding out after they already wiped the old disk.
Check what slot you actually have
- Task Manager → Performance → GPU/CPU will not help. Look in the bottom cover, or the service manual, for M.2 2280 vs 2242 and SATA vs NVMe.
- A 2242 slot will not take a 2280 card. Some chassis have a bracket for that; most laptops do not.
- Some ultrabooks have the SSD soldered. If you cannot see a removable module, stop shopping.
Clone, then swap — never the reverse
Clone onto the new drive while the old one is still the boot disk. I use a USB NVMe/SATA enclosure so I don’t need a second computer. If Windows has BitLocker or device encryption on, suspend or decrypt it first or the clone often won’t boot. Confirm the clone looks right (or actually boots from the enclosure) before you pull the original.
On the bench
USB NVMe / SATA enclosure
This is the clone tool. Without it you’re asking a friend for a desktop or gambling on a one-shot swap. I like one that does 2280 NVMe and 2.5" SATA because I see both.
- USB 10Gbps is enough for a clone. You do not need Thunderbolt for this job.
- After the upgrade, the enclosure becomes your spare-drive tester.
On the bench
A mainstream 1TB NVMe (if the slot is NVMe)
PCIe 3.0 1TB is what I put in older laptops that will never see PCIe 5.0. Budget DRAM-less is fine for a browser box. Work disk, buy a known 1TB-class drive and don’t chase sequential-read leaderboards on a thermally limited laptop.
- Match length: 2280 is standard; 2242 is not.
- Do not chase sequential-read leaderboards for a laptop that is thermally limited.
After it boots
Open Disk Management and extend the Windows partition into the leftover space. Clone a small disk onto a 1TB and you’ll have a pile of unallocated space sitting there until you claim it. I keep the old drive in the enclosure for a week as a rollback.
Verdict
Check the slot, clone to an enclosure, swap, confirm boot, expand the volume. The SSD is the easy part. The clone order is what keeps Windows.