SSD vs HDD for an old laptop: will an upgrade help

Verdict: if your old laptop has a spinning hard drive and feels slow to start and open things, an SSD is the best upgrade for the money. If it is slow because it runs out of memory or has a very weak processor, an SSD helps less than you hope.

The decision rule

Ask two questions.

1. Is the laptop still in good shape otherwise? Good screen, working keyboard, battery that lasts long enough for you.
2. Does it have a hard drive (HDD) now?

Two yeses, and an SSD is worth a look. A no to the first, and you are putting money into a laptop that will fail elsewhere.

What an SSD can fix

An HDD has spinning parts. An SSD has none. That is why an SSD is typically much quicker at starting up, opening programs and loading files. Owners often report that an old laptop feels "like new" after the swap.

It also uses no moving parts, so it handles knocks better, and it is silent.

What an SSD cannot fix

• A slow processor. Video editing, big spreadsheets and games will still be slow.
• Too little memory (RAM). If the laptop has 4 GB or less and you keep many tabs open, it will still struggle. More memory may help as much as an SSD.
• A dead battery or a cracked screen.
• An operating system that is too old to get updates. That is a safety problem, not a speed one.

Rule: an SSD fixes waiting. It does not fix power.

How to know if your laptop can take one

1. Find the exact model name, usually on the bottom of the laptop.
2. Search the model name plus "storage upgrade" or read the maker's support page.
3. Look for the drive size. Most older laptops use a 2.5 inch drive, and SSDs come in that size too.
4. Check the connector. Many older laptops use SATA. Newer ones may use a small stick type called M.2. The drive must match.
5. Check whether the back panel opens with a few screws. Some thin laptops have glued or soldered parts that make a swap hard or impossible.

If you cannot answer these, ask a repair shop. Many will tell you in a minute.

Back up first

Do this before you touch anything. Copy photos, documents and anything you cannot replace to an external drive or an online account. Then check that you can open the copies.

You have two ways to move over. You can make a clone, which copies everything onto the new drive, or you can install the system fresh and put your files back. A fresh install is cleaner. A clone is faster. Either way, keep the old drive untouched until the new one works.

Cost versus a new laptop

Here is the logic, with no prices. An SSD is typically a small fraction of the cost of a new laptop (a $ against a $$$). If the swap works, you may get a few more years of use.

A new laptop makes more sense when:

• The processor is very old and cannot run current software.
• The battery or screen also needs replacing.
• The laptop is too thin to open.
• The repair costs close to half of a new one.

Our comparison of laptop vs tablet for study can help if the next step is a different kind of device altogether.

Where the verdict flips

• Laptop has an SSD already: do not buy another. Look at memory instead.
• Laptop is more than about ten years old and slow all around: save the money for a new one.
• You need big storage cheaply, for example for a photo archive: an HDD still offers more space for the price. Keep it as an external drive.

Common mistakes

• Buying the wrong connector.
• Skipping the backup.
• Forgetting the screwdriver set or the static care, such as touching metal first to discharge yourself.
• Expecting a gaming laptop's speed from a basic one.