Dysk i Spółka • Data Recovery Laboratory
Knowledge Base & Expert Guides from our Warsaw laboratory
Knowledge Base & Expert Guides — our blog with practical articles on data recovery, failure diagnostics and media safety. Choose a topic and review safe first steps before attempting any do-it-yourself fix.
Expert guides: how to save data from HDD, SSD and RAID systems.
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Most-read data recovery guides
Below you will find some of our most popular guides. Each article ends with links to services so you can easily move from the problem to a safe diagnosis.
If you are looking for first-response guidance before you start any DIY steps, begin with first aid after spilling liquid on a laptop, why the worst time to experiment is right after data loss, how to secure what you can without making things worse and when to stop guessing and hand the case to a laboratory.
- Unknown or uninitialized disk — should you initialize it?
- RAW drive is asking to be formatted — what should you do?
- RAID 5 shows a degraded status — what should you do?
- Monitoring / DVR / NVR — deleted footage, file systems and retention
- Business / GDPR — accounting data, RAID/NAS incidents and continuity
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5 mistakes that turn minor damage into a disaster: what you should never do when data goes missingDamaged HDD? Learn which five mistakes destroy recovery chances, why they are risky and what to do instead to avoid making the damage worse.
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Why automation is not an option, but a necessityAutomatic data backup: Windows and macOS. Practical backup guidance for photographers, creators and small teams from our Warsaw laboratory.
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Accounting and HR drive failure: how to combine data recovery with GDPR obligationsWhat to do when a drive with accounting or HR data fails. Safe first steps, GDPR-aware handling and professional data recovery support in Warsaw.
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RAID failure in a company is a critical incident: what to do to avoid losing data foreverRAID failure in a company? See the safe first-response procedure, an IT checklist and the warning signs that make rebuilds too risky.
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Cause: bad sectorsData error (CRC) while copying files usually points to read instability. See what it means, what not to do and how to protect the files.
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Diagnostics: look at the drive capacityDiagnostics: look at the drive capacity — "Unknown, uninitialised disk" — why did the drive disappear, and is it safe to initialise it?
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SSD and NVMe bricking: what it means and why it most often happens during data recoveryLearn what SSD and NVMe bricking means, why it often happens during unsafe recovery attempts, and which actions reduce the risk of permanent data loss.
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What a professional laboratory does that you cannot do at homeSee what a professional data recovery laboratory can do that home methods cannot: safe imaging, controlled diagnostics and work on copies.
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What to do after a company NAS or server failure: the first 24-hour guideSee what to do in the first 24 hours after a server or NAS failure, which actions protect data, and when to stop risky in-house attempts.
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What you absolutely should not do if your data mattersOne of the most common mistakes is repeatedly powering up a damaged device in the hope of a "miraculous" recovery.
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SSD vs HDD: which drive really protects your data better?SSD and HDD fail in different ways. Compare reliability, recovery difficulty and the real data-loss risks before choosing your next drive.
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Drive will not start — black screen: diagnosis and step-by-step prevention of a disasterWelcome to our guide to a problem many computer users may face: a drive that will not start and a black screen.
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What you absolutely must not doRAW drive and a format prompt? Learn why the system shows it and when you should stop all attempts to avoid making recovery harder.
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Why does a sudden power loss "break" the file system?RAW drive after a power outage? See why the file system may break and which actions are safe if the data still matters.
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The drive became RAW after being connected to another computer — why does it happen?When a drive starts throwing errors, shows up as RAW or freezes the computer, the key is to stop all writes and avoid actions that overwrite data.
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Why are USB drives especially prone to the RAW error?External USB drive shown as RAW? Learn why the system cannot read it and which first steps are safest before further testing.
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What does drive clicking on startup mean?What a clicking HDD usually means, why it is not a software problem and when you must stop trying to boot the drive to protect the data.
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"Do you want to format the disk?" — why the answer must be NORAW drive asking to be formatted? Do not click Yes. Learn what the message means and which steps protect the data before recovery.
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Drive makes strange noises — a checklist of mechanical failure symptoms and what to doHard drives (HDDs) normally operate quietly, so when they start making strange noises, it should raise concern.
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