7 BIOS checks before buying a used laptop in Ghana

You’ve found a used laptop on Jumia or Franko for a price that feels too good to pass up. Before you transfer money via MTN MoMo, there’s one thing most buyers skip: checking what the BIOS actually says about the machine. The BIOS is the laptop’s deepest layer of software, and it’s the one place a seller can’t hide damage.

Here’s what you need to know before handing over your cash.

What is the BIOS and why it matters

The BIOS is firmware (deep-level code) that runs before your Windows or operating system even loads. When a seller wipes the hard drive and reinstalls Windows, the BIOS remembers everything. Power-on hours, security locks, battery wear, corporate ownership flags — it’s all still there.

Good news: you don’t need to be a technician. You just need to know what to look for.

BIOS checks before you buy

1. Check if the laptop is remotely locked (Absolute/Computrace)

Some corporate laptops have a feature called Absolute (also listed as Computrace) that lets a company wipe or lock the machine from the internet, even if you own it physically. You need to check if this is active.

Open the BIOS by restarting the laptop and pressing the Setup key (usually F2, Delete, or F12 — the seller or manual will tell you which). Look under Security or Anti-Theft for Absolute or Computrace. If it shows “Activated,” the original company still controls it. Walk away. If it shows “Disabled” or “Not Activated,” you’re good.

2. Test the BIOS password lock

Try to change a setting in the BIOS (like boot order). If a password pops up and the seller can’t clear it immediately, don’t buy. A locked BIOS means you can’t install a fresh copy of Windows cleanly, and you can’t update firmware later.

3. Look for Intel AMT / vPro provisioning

This is less common on consumer laptops but watch for it on corporate machines. It’s a hidden remote-access layer that bypasses your antivirus. In the BIOS, look under Advanced → Network for “Provisioned” status. If it says “Provisioned,” someone else can access the laptop remotely even if it’s offline.

4. Check Secure Boot key ownership

If the laptop came from a company, the BIOS may have enterprise certificates instead of Microsoft’s standard ones, locked in “Deployed Mode.” This blocks dual-boot setups and Linux installations. If you care about that flexibility, ask the seller to reset it. If they can’t (or won’t), you’ve lost options.

5. Verify TPM 2.0 is enabled

Windows 11 requires TPM 2.0 (a security chip). Check that it’s listed as “Ready” or “Available” in the BIOS, not just “Present.” Some older enterprise laptops have it permanently disabled and no update can fix it. This matters because Windows 10 support will eventually end, and you’ll want to upgrade.

6. Read the storage power-on hours

This is the “odometer” of the hard drive. It can’t be reset without professional tools. Look in BIOS diagnostics for “Power-On Hours.” Lower numbers suggest lighter use, while very high numbers indicate the drive has seen years of daily operation and may need replacement soon. Use this as one factor when negotiating price or budgeting for repairs.

7. Cross-check battery cycle count and wear

A battery showing high wear with very few charge cycles hints at abuse (deep discharges or poor charging). High wear with many cycles is normal aging. Either way, budget for a replacement battery if wear is listed as high.

What to do now

Before you buy, ask the seller if you can boot into the BIOS (or take a video call where they show you). If they refuse or can’t, assume they’re hiding something. If everything checks out, you’ve just avoided a locked machine that would be stuck in someone else’s corporate network.

On local markets (Jumia, Franko, tech shops around Accra), many sellers won’t know these checks exist. That gives you an edge. A refurbished laptop from a reputable tech shop may have these issues documented — ask.

Photo: Makeuseof