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No: the reported 60.8% does not mean an external hard drive has a 60% chance of failing in its first year. It means that, in a recovery-lab sample of drives that had already failed, 60.8% had logged less than one year of power-on time. Because the sample contains failed drives sent for professional recovery—not a representative group of all drives in use—it cannot tell you the odds that a new drive will fail before its first birthday.
What the 60% figure actually measures
A September 2026 WindowsForum report describes an analysis by Secure Data Recovery of 3,453 external hard disk drives (HDDs) sent to the company for professional recovery between January 2023 and June 2026. The report says 60.8% of those already-failed drives had recorded less than a year of power-on time.
That is a description of operating time among a selected group of failed drives. It is not the percentage of all external drives that fail in their first year, nor the probability that a newly purchased drive will fail during that period. To calculate that probability, you would need a representative group of drives in service, including drives that did not fail, and reliable follow-up over time.
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The report says the lab excluded purely logical failures and some drives with severe platter damage because their SMART readings could be unreliable. That makes the sample a particular subset of recovery cases, not a census of consumer drives. The report itself cautions that early failures may be overrepresented. The original Secure Data Recovery analysis was not available in the cited secondary report for direct verification, so its findings should be attributed to the report rather than treated as an independently confirmed market-wide measurement.
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Why failed-drive cases cannot predict your drive’s odds
A recovery lab sees drives because someone has experienced a problem serious enough to seek recovery. Drives that keep working, are replaced without recovery, or fail in ways that do not lead to a lab case are not represented in the same way. The sample is therefore selected based on an outcome—failure—and on a decision to seek professional recovery.
Power-on time also is not the same as calendar age. A drive used intermittently could take years to accumulate a year of powered-on hours; a drive left running could accumulate that time much sooner. The figure says when these failed drives logged their operating hours, not how long every drive lasted after purchase.
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The report lists a median of 4,559 power-on hours (about 190 days) and an average of 15,961 hours (about 665 days) for its failed-drive sample. Neither statistic is a typical lifespan for all external HDDs: both describe only the lab’s selected cases. Its brand counts—Western Digital 2,016, Seagate 802, Toshiba 333, Hitachi 184, and Samsung 118—are also incoming failed-drive cases, not failure rates or a reliability ranking. Without sales or operating-population denominators for each brand, those counts cannot show which brand is more likely to fail.
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Large data-center studies can provide useful evidence about the drives and operating conditions they observe, but their rates do not directly answer how often portable consumer external drives fail. Their populations, usage, models, and measures differ.
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| Source and population | Reported measure | What it can—and cannot—show |
|---|---|---|
| Secure Data Recovery analysis, as summarized by WindowsForum in September 2026; 3,453 external HDDs already sent for professional recovery from January 2023 through June 2026 | 60.8% of the failed-drive sample had less than one year of power-on time | Describes operating time among those lab cases; does not estimate the first-year failure probability for all external drives. |
| Google data-center drives in a 2007 USENIX FAST study | Observed annualized failure rates ranged from 1.7% for drives in their first year to more than 8.6% in the three-year-old population | Applies to the study’s data-center population. The authors note that different drive models were mixed across age groups, so the figures are not a clean age-only curve and should not be transferred directly to portable consumer drives. |
| Backblaze’s managed data-center drive cohorts in its 2023 report | 1.54% quarterly annualized failure rate in Q1 2023; 1.40% lifetime annualized failure rate | Describes Backblaze’s own cohorts and inclusion rules, not consumer portable external drives. The report notes that model counts and drives still operating affect comparisons; surviving drives have not yet completed their failure histories. |
These figures use different denominators and measures. A share of failed cases with a certain amount of operating time is not interchangeable with an annualized failure rate calculated from a managed fleet. Neither data-center study supplies a representative first-year failure probability for external drives used by consumers.
Can SMART data warn you that a drive is about to fail?
SMART (Self-Monitoring, Analysis and Reporting Technology) readings can be associated with increased failure probability, but they are not a dependable countdown for an individual drive. The Google/USENIX study found that many failed drives showed no SMART error signals. A clean SMART status therefore cannot guarantee that a drive is healthy or that it will keep working.
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Use drive-health alerts as one possible warning, not as a substitute for keeping another copy of important files. If a drive begins behaving abnormally, avoid relying on it as the only place your data exists.
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How to protect files from an external-drive failure
The practical response to uncertainty is to avoid making one drive the only copy of files you cannot replace. A separate local backup drive can provide another copy; a copy stored off-site can help if an event affects both the computer and the local backup. An external HDD is a useful backup option, but no single drive is failure-proof.
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- Keep another copy on separate storage. Do not treat files as backed up if the only copy is on the external drive.
- Consider a separate off-site copy. It addresses some risks that could affect both your computer and a backup stored nearby. Weigh ongoing cost, restore time, capacity, and privacy when choosing an off-site approach.
- Check that copies can be opened. A backup is useful only if the files can be retrieved; periodically open a few important files or perform a test restore.
- Do not let a warning be your first backup plan. SMART readings may flag risk, but failed drives can show no reported SMART errors beforehand.
A portable external hard drive for backups is one way to keep a separate local copy. Choose the storage arrangement around the files you need to recover and the risks you need to cover, rather than assuming any particular drive is immune to failure.
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