Lost Files? What Data Recovery Can (and Can't) Do
Lost an important file, or has a drive stopped working? Data recovery is often possible — but your chances depend hugely on what you do in the first few minutes. Here's an honest look at what can and can't be recovered, and how to avoid making things worse.
Why "deleted" rarely means gone
When you delete a file, the computer usually just marks that space as free to reuse — the actual data often lingers on the drive until something else writes over it. That's why quick action gives the best results, and why a drive that won't boot, or a file you deleted last week, isn't necessarily a lost cause. The clock is really about overwriting, not time itself.
Usually recoverable
- Accidentally deleted files and emptied recycle bins (if acted on promptly).
- Data from a computer that won't boot but whose drive is physically healthy.
- Files from a drive with logical corruption or a failed update.
- Photos and videos from many memory cards and USB sticks.
Harder, but often possible
- Mechanically failed hard drives (clicking, grinding or not spinning) — specialist work.
- Water- or fire-damaged devices (see liquid damage).
- Some failed SSDs, depending on the type of fault.
Genuinely difficult or impossible
It's only fair to be straight about the limits. Data that's been securely wiped or overwritten, drives that are physically destroyed beyond a certain point, and files locked by ransomware with no backup are often unrecoverable. Strong encryption with a lost password is, by design, not recoverable either. We'll always tell you honestly what the realistic odds are before any chargeable work.
The single biggest mistake
Continuing to use the device. Every time you save, install or even browse, you risk overwriting the very data you want back. If the files matter, stop using the drive and seek help. And for a mechanically failing hard drive, repeated power-ons and DIY recovery tools can turn a recoverable fault into a permanent loss — every spin-up does a little more damage.
How to give yourself the best chance
- Power the device down and don't save anything new to it.
- Don't run repeated recovery tools on a physically failing drive (clicking/grinding).
- Don't put a wet device on charge or try to "dry it out" and switch it on.
- Bring it in sooner rather than later.
The real lesson: backups
Data recovery is a brilliant safety net, but it's never guaranteed and it's always more stressful (and often costlier) than simply having a backup. The best data-recovery strategy is the one you set up before disaster strikes — see backing up and the 3-2-1 rule.
We'll do our best to get it back
Our computer repair and laptop repair teams handle data recovery as part of everyday work — and once you're back up and running, we'll help you set up reliable backups so it can't catch you out again.