Come faccio a sapere se il mio hard disk è danneggiato?

Puoi usare strumenti come CrystalDiskInfo per controllare lo stato S.M.A.R.T. oppure CHKDSK da terminale. Se vedi rallentamenti, file corrotti o rumori strani, il disco potrebbe essere a rischio.

Quanto spesso dovrei controllare lo stato del mio disco?

Almeno una volta al mese, oppure ogni volta che noti comportamenti anomali.

È meglio usare un HDD o un SSD?

Gli SSD sono più veloci e silenziosi, ma hanno una durata limitata in termini di scritture. Gli HDD hanno maggiore capacità a costi più bassi, ma sono più sensibili a urti e usura meccanica.

Cosa fare se il disco mostra settori danneggiati?

Avvia subito un backup. Usa CHKDSK o software specifici per tentare la riparazione, ma considera la sostituzione del disco.

Se il disco è rovinato, posso recuperare i file?

In molti casi sì. Esistono software di recupero dati e, nei casi più critici, servizi professionali specializzati.

How to Check the Hard Drive Status: Complete Guide to Prevent Data Loss

The hard drive (HDD or SSD) is the component where the operating system, programs, and all your files are saved. Its malfunction can mean the permanent loss of data. However, many signs of wear or impending failure can be detected early if you know what to look for and which tools to use.

Avoiding ignoring signs like sudden slowdowns, strange noises, or error messages can make the difference between simple maintenance and a disastrous data loss.

Summary

Signs of a hard drive in trouble

Recognizing the symptoms of a struggling drive is the first step to prevent irreversible damage:

Unexplained system slowdowns
Crashes or freezes when using large files
Read or write errors
Damaged sectors (bad sectors)
Abnormal noises (clicks, buzzing, unusual vibrations)
Corrupted files or files that won’t open
Operating system startup issues

If you notice one or more of these signs, it is crucial to act immediately.

Free tools to check the hard drive

Here is a selection of free, easy-to-use tools that can help you diagnose the health status of your hard drive.

1. CrystalDiskInfo (Windows)

One of the most used tools to monitor HDD or SSD via S.M.A.R.T., the self-diagnosis system built into drives. It shows temperature, status, power-on count, errors, and more.

Downloadable from: crystalmark.info
Clear indications: good, caution, bad

2. Hard Disk Sentinel (Windows/Linux)

Offers detailed analysis and proactive alerts. The basic version is free, but some advanced features require a license.

3. GSmartControl (Windows/Linux/macOS)

Open source software to check the status of S.M.A.R.T. disks, perform automatic tests, and display technical parameters.

4. Disk Utility (macOS)

Mac users can use the “Disk Utility” app included in the system to verify and repair permission and disk errors.

5. CHKDSK (Windows – command prompt)

Native Windows command to check the file system structure and any damaged sectors.

chkdsk C: /f /r

Warning: running CHKDSK may require a system restart.

Physical checking and maintenance

In addition to software tools, the physical environment and usage conditions also affect the health of the disk:

Maintain a constant temperature, avoid overheating and excessive dust.
Use uninterruptible power supplies (UPS) to protect against sudden power outages.
Do not move or bump the PC while it is on, especially with mechanical HDDs.

If you want to learn more about how to monitor temperature, also read:
How to check your PC temperature with free tools

Backup: the most important solution

Checking the hard disk’s status is important, but nothing is as effective as having an up-to-date backup copy of your data. You can use:

External hard drives
USB sticks
Cloud services (Google Drive, Dropbox, OneDrive…)
Automatic backups with software like Macrium Reflect or AOMEI Backupper

Plan at least one full backup per week, or more frequently if you use the computer for work.

If the hard disk is already having issues: what to do

If you have already identified problems with the disk, proceed as follows:

Do not use it more than necessary: avoid writing new files on it.
Recover data: use software like Recuva, TestDisk, EaseUS Data Recovery.
Clone the disk: if still readable, copy everything to a new disk.
Replace it as soon as possible, before it becomes unreadable.

Also see:
Corrupted file? Here’s how to recognize and recover corrupted files

FAQ – Frequently Asked Questions

How do I know if my hard disk is damaged?: You can use tools like CrystalDiskInfo to check the S.M.A.R.T. status or CHKDSK from the terminal. If you notice slowdowns, corrupted files or strange noises, the disk might be at risk.
How often should I check my disk’s status?: At least once a month, or every time you notice abnormal behavior.
Is it better to use an HDD or an SSD?: SSDs are faster and quieter, but have a limited lifespan in terms of writes. HDDs have greater capacity at lower costs, but are more sensitive to shocks and mechanical wear.
What to do if the disk shows damaged sectors?: Start a backup immediately. Use CHKDSK or specific software to attempt repairs, but consider replacing the disk.
If the disk is damaged, can I recover the files?: In many cases, yes. There are data recovery software and, in more critical cases, specialized professional services (expensive but effective).