Handing your laptop to a repair technician is a small act of trust that involves a surprising amount of your life. That machine holds your photos, your documents, the passwords your browser remembers, your banking apps, and quite possibly the unfinished draft of something you’d rather nobody read. And yet most of us do the same thing we’d do with a car: drop it off, sign a form, and hope for the best.
A repair visit usually ends one of two ways. Either the technician fixes the problem and hands the laptop back intact, or the machine comes back with its storage wiped and a fresh operating system installed. Microsoft is blunt about this: when a Surface goes to its service centre, everything on it is erased, and it returns with Windows reinstalled. Apple is gentler but honest too — a repair can require erasing or replacing the startup disk. Neither company takes responsibility for your data.
All of this takes about half an hour of preparation. Here is what is worth doing before your laptop leaves your sight.
1. Back up your files — and assume they’ll be wiped
This is the one that matters most, and the one people skip because “they’re only replacing the keyboard.” Assume the worst: your laptop may come back with a blank drive. Sometimes it happens deliberately, because a clean reinstall is part of the diagnostic process. Sometimes the drive gets replaced along with the faulty component. Either way, the contents are gone.
If your laptop still turns on, copy your important files now. Cloud storage is the easiest route — OneDrive on Windows, iCloud on a Mac — and Windows has a built-in backup tool that walks you through it. A manual copy to an external drive works just as well; the important thing is that the copy lives somewhere other than the machine going in for service.
If the laptop won’t turn on at all, a backup obviously isn’t possible — but whatever cloud syncing you’ve been running is now your only safety net. You’ll restore from that once the machine comes back.
2. Sign out of the accounts that lock the machine
Repair shops — including the manufacturers themselves — cannot always work on a device that’s still tied to your identity. Apple’s rule is the clearest example: if Find My is turned on for a Mac, Activation Lock stays active, and Apple may refuse to service the machine at all. The fix is to turn Find My off before you go. (You’ll also want to switch off any firmware password on older Intel Macs, and Apple suggests turning on FileVault or wiping the machine if you’re worried about your data in someone else’s hands.)
On a Windows laptop, the equivalent locks are your device PIN and, on many machines, BitLocker drive encryption. Write down your BitLocker recovery key — it’s in your Microsoft account online — rather than trying to remember it later. You’ll also want to sign out of your Microsoft account if the shop asks you to.
One more thing to move before you hand the laptop over: your two-factor authentication. If your authenticator app lives on the laptop (through a browser extension, say), consider transferring your codes to your phone first — here’s how to move authenticator codes to a new device — so you’re not locked out of your own accounts while the laptop is away.
3. Pull out everything removable
SD cards, USB drives, SIM cards, dongles, the little receiver for your wireless mouse — take them all out. Repair instructions from Microsoft explicitly list these: remove keyboards, USB devices, memory cards, the power supply, docks and audio cables before shipping. These small items are easy to lose in a service centre, they aren’t covered by the repair, and you almost certainly need some of them for your other devices.
The rule of thumb: send in the laptop and nothing else. The charger is the one exception some shops want for testing, but ask first — and many manufacturers now tell you not to include it at all.
4. Write down what’s actually wrong
Repair technicians diagnose based on what you tell them, so the quality of your description directly affects the quality of the repair. “It doesn’t work” costs you a round trip. Something like “the laptop shuts off within two minutes whenever I open a video call, even on full charge; the fans were very loud for about a week before this started” gives the technician a genuine head start.
Jot down three things: the symptom (what happens), when it started, and what you’ve already tried. If there are error messages, copy them exactly. If the problem is intermittent, note the pattern — only when the charger is plugged in, only in the morning, only with a particular app. A note on the receipt or taped to the machine works; don’t rely on remembering it during a busy handover.
5. Take photos of the laptop as it is today
This one is about disputes, not diagnostics. If your laptop comes back with a new scratch, a cracked corner, or a missing key, you’ll want proof that the damage wasn’t already there. Photograph the whole machine — top, bottom, all four edges, the screen — in decent light. It takes a minute and it settles arguments before they start.
While you’re at it, check whether the machine’s physical condition affects your warranty. Cracked screens and liquid damage, for example, usually mean a repair goes down the paid route rather than the warranty route, so it’s better to know where you stand before you send it off.
6. Note the serial number and keep your paperwork
Write down the laptop’s serial number — it’s on a sticker underneath most machines, and also in Settings or About This Mac. Some service processes require the serial to match the order, and you’ll need it for any follow-up calls. Microsoft specifically warns that shipping a device whose serial number doesn’t match the service order can cause delays.
Keep hold of your proof of purchase and note down the service or ticket number once the repair is booked. And when the day comes, make sure the battery is charged — some repairs start with power-on diagnostics, and a dead battery adds a needless delay.
What not to hand over
It deserves stating plainly: never give a technician your account passwords. Apple’s support pages are explicit that neither Apple nor its authorised providers will ever ask for your Apple Account password or device passcode — if someone does, that’s a red flag, not procedure. You may be asked to type a password yourself while standing at the counter so the technician can run a test, but that happens with you present, on your terms.
Thirty minutes of prep won’t make the repair faster, but it changes the stakes completely. Your files are safe, your identity is disentangled from the machine, and there’s a record of what went in and what you were told. The best repair outcome is the one where you never have to think about what you left on the desk — because there’s nothing left on it to worry about.
If you’re unsure how safe your everyday logins are in general, this is a good moment to sort that too — a password manager takes the memory problem out of it, one strong password at a time.
