- CrystalDiskInfo monitors health, temperature, and SMART attributes with customizable alerts.
- Possibility of local and email notifications via SMTP with configurable thresholds.
- Practical solutions to Gmail certificate errors and network recommendations.
- Maintenance tips and alternatives to expand the diagnosis.
If you are concerned about the lifespan of your SSD or the traditional hard drive, CrystalDiskInfo is one of those tools that you install once and are always grateful for. Allows you to see health, temperature and SMART parameters at a glance, as well as configure alerts to anticipate problems. before they play a trick on you.
In this guide we gather everything you need to know to master the program, from downloading and available editions to each menu option, including detailed reading of metrics, the Personalized alerts based on temperature and health status and email notificationsWe also cover solutions to common Gmail SMTP errors and provide maintenance tips, workarounds, and quick answers to common questions.
The health of your discs: what you should know
An SSD, like an HDD, is not eternal: SSDs wear out by write cycles measured in TBW, and mechanical drives typically endure tens of thousands of operating hours before symptoms begin. Knowing your drive's actual performance helps you decide when prevention or replacement is due.
Much of the information you'll see in CrystalDiskInfo comes from SMART, the monitoring system built into the disks themselves. These attributes reveal read errors, remapped sectors, temperatures, power-on time, or power outages., data that the program displays clearly so you don't have to dive into esoteric menus. If you prefer the line of commands, you can check health with wmic and smartctl.
For those who use multiple drives, internal or external, there is good news: CrystalDiskInfo can also read disk information USB, NVMe, Intel or AMD RAID as long as the controller and USB bridge expose SMART correctly.
Important nuance: No tool can accurately predict the day and time of a failure, but seeing trends, thresholds, and critical values allows for timely action. That's why alerts make the difference.
Download and install CrystalDiskInfo
Always download from the official CrystalDew World website to avoid unwanted software. You will find several editions with the same functional base: standard, Shizuku and Kurei Kei (the latter change the aesthetics with Japanese-style themes, but not the functions).
You have two main formats: INSTALLER to install on Windows modern y Portable ZIP compatible with older versionsThe portable edition includes executables for 32-bit, 64-bit, and ARM versions: DiskInfo32.exe, DiskInfo64.exe, and DiskInfoA64.exe, so you can carry the program on a flash drive and use it without installing it.
The wizard is trivial: you choose the language (the program detects Spanish, but some chains are still in English because they are technical terms), you accept the license, route and that's it. In a minute you will have CrystalDiskInfo working, and from there everything happens in the main window.
If you don't see your drives after installing, don't worry: Later we will see how to force detection and how to rescan with one click.. In environments with RAID or certain USB bridges it is normal to need an extra adjustment.
What the main screen shows and how to interpret it
The first thing that jumps out is the large state of the selected unit. If it appears in blue with the label Good, you are within normal parameters according to the defined thresholds. Just below, you'll see the temperature, also in blue when it's safe.
The device's commercial model or SKU and its detected capacity are displayed at the top. Don't be surprised if the figure varies slightly from what was announced., it is normal because of the way of reporting capacity in GiB versus GB.
The right-hand information block brings together the essential information for each disc: Firmware, serial number, interface, transfer mode, drive letter, standard and supported technologies such as SMART, APM, NCQ, TRIM, or DevSleep. If you plug a PCIe 4.0 SSD into a 3.0 slot, you'll see the transfer mode bottleneck here.
A little further down, some very useful counters will appear: Total Host Reads and Total Host Writes (total reads and writes), number of ignitions, hours on and, for HDD, the Rotation speedThese totals help assess wear, especially on SSDs, by comparing them to the manufacturer's TBW.
In the table below you will see the SMART attributes with their current value, thresholds, and most importantly: the raw value. We recommend going to Features > Advanced Options > Raw Values and choosing 10 to see numbers in decimal and not in hexadecimal, which is much more practical.
Some attributes to watch out for: Unsafe Shutdowns (power outages without turning off), temperature, reassigned or pending sectors and, in SSDs, written data counters or wear level. Not all manufacturers display the same thing, but The global picture is well understood with a look at health, temperature and errors.
Colors, reliability and frequency of use
In addition to the healthy blue, CrystalDiskInfo uses yellow and red to draw attention. Yellow usually means caution or that the lifespan is around 10 percent. according to the unit's calculation. Red indicates a threshold crossing: it's time for urgent copying and a replacement plan.
Although the tool is reliable for monitoring, there are limits: It does not accurately predict the future or replace a backup.. The sensible thing is to also rely on other utilities when you suspect faults.
For a home PC, just open the program. every three to six months. If your team is under a lot of pressure or you work with critical data, review monthly or leave the resident program with alerts active.
Compatibility is broad in Windows from XP to current versions, both with SATA and NVMe. On macOS you can use alternatives like DriveDx, And in Linux, smartmontools or GSmartControl give you similar metrics.
If you use USB boxes, keep in mind that Some bridges do not expose SMART correctlyIn that case, you won't see the full board; try a different adapter or connect it directly to the board.
Program Options: What's Important and What's Not
The File menu here is barely useful for exiting, so it's of little use. The Disk menu duplicates the drive selection you can already change from the top, so it doesn't contribute much to everyday life either.
In Theme you will find several customizations: zoom, a color filter, fonts and skin change If you're using the Shizuku or Kurei Kei editions. It's purely aesthetic, but if you're going to keep it anchored to the bar, it helps to keep it legible.
Language allows you to change the interface language and has a very practical option: SMART in English, which leaves the names of technical attributes in English. It's great if you follow manuals or compare with official documentation.
In Help you will see links to the program site, the developer site, and the SMART page at Wikipedia. About shows version and build date, useful to check if you are up to date.
Edit modifies how Ctrl+C behaves within the app: You can copy data from all disks with different levels of detail and even switch to ASCII view for certain fields.
Function is the heart of the program: You can refresh data instantly, define the refresh frequency from 1 to 1440 minutes, choose whether to update all drives or just some, and force a rescan in case you hot-plug another drive.
The Graphic section allows you to see temperature trends and other attributes, comparing one or more units. It's ideal for detecting temperature increases in poorly ventilated cases or performance variations.
Practical adjustments include Hide serial number to cover the SN in the window, Put in taskbar so that it is minimized in the notification area and Start with Windows for Boot alone. It also has shortcuts to Disk manager and Device administrator of Windows.
And we come to the advanced features within Features: AAM and APM control (if supported by the unit) to adjust noise and power management, automatic adaptation for CrystalDiskInfo to manage APM, health status settings with thresholds of reallocated sectors or remaining life, temperature alarm with a threshold to your liking and Celsius or Fahrenheit scale.
Below, you have automatic drive detection with interval in seconds, raw values in hexadecimal or decimal, boot timeout, mode of residence for background behavior and a advanced disk search in case something doesn't appear the first time.
The range is completed by detection modes for different buses: ATA Pass Through, USB or IEEE 1394, Intel RAID CSMI, AMD RAID y MEGARAID, in addition to enabling compatibility with Gadgets and options to hide non-SMART disks or hide the SMART table itself
Set up local temperature and health alerts
Alerts are the reason CrystalDiskInfo makes the difference. From the main screen you can click on Health or Temperature to open your custom options and set your own thresholds.
For temperature, set the value at which you want the alert to sound. On NVMe SSDs it is common to see high peaks under load, but a timely alarm will remind you to check the ventilation or install a heat sink if necessary.
In healthcare, you can define thresholds based on critical attributes such as reallocated sectors or remaining lifeIf the unit exceeds the threshold, a warning will appear on the interface and in the notification area icon.
Additionally, in the advanced options you can activate sounds for notifications and associated actionsRemember to adjust the update frequency so that the check is fast enough without being invasive.
If you manage multiple units, it is a good idea to assign threshold and frequency per diskA system SSD will behave and heat differently than a backup HDD, so adjust based on your actual usage.
Email Notifications: SMTP and Certificate Error Resolution
CrystalDiskInfo includes an email alert plugin that uses SMTP. It is used to receive an email when a condition is met. such as high temperature or health at the caution threshold.
With Gmail, it's common to encounter an SSL authentication error such as an invalid remote certificate. This failure is usually related to TLS, certificate validation or the policy of Google against apps less safe.
To set it up with Gmail, use these principles: smtp server.gmail.com, port 587 with STARTTLS and username and password authentication. If you have two-step verification, create an app password into your Google account and use it instead of your regular password.
If you get the remote certificate error, try this diagnostic path: Update CrystalDiskInfo to the latest available version, make sure that Windows has up-to-date root certificates and that the system negotiates TLS 1.2 or higher (this may fail on older .NET machines). Also check that no antivirus or proxy intercepting SSL that breaks the validation.
More useful checks: synchronizes the system date and time, verify that port 587 is not blocked by the firewall and, if your corporate network inspects TLS, try another network or another SMTP provider such as Outlook.com or your ISP's own.
If none of that works with Gmail, you can temporarily use an alternative SMTP server or set up a local SMTP relay that speaks modern TLS outward. The goal is to ensure the encrypted channel and certificate validation. they don't break on the way.
Tips to extend the life of your units
Beyond monitoring metrics, the best plan is to take care of the environment. Keep the temperature at bay with good ventilation; Heat accelerates degradation and can cause throttling in NVMe. You can measure temperatures with HWMonitor.
Avoid knocks and sudden movements, especially in portable with HDD. Movements during writes can corrupt data, and no one wants that party. Regular backups and that's it.
On HDD, periodic defragmentation improves reads in certain scenarios; on SSD do not defragment, you'll limit its lifespan with no real benefit. However, use the manufacturer's diagnostic tools for firmware or status updates.
Leave free margin: have between 10 and 20 percent available space helps the system perform internal tasks and reduces write stress, especially on tightly overprovisioned SSDs.
Set a reminder to run CrystalDiskInfo every so often. It's a five-minute checkup that can save you hours of recovery. and disappointments with priceless data.
Interesting alternatives to CrystalDiskInfo
If you are looking for other looks or complementary functions, there is a good assortment.
- HD Tune It is simple and straightforward to view disk status without any hassle.
- HWiNFO monitors in real time and generates very complete reports, ideal for comprehensive diagnostics of hardware.
- Speccy, from the creators of CCleaner, offers clear disk and temperature information, useful for a quick snapshot.
- Hard Disk Sentinel goes further with repair functions and recommendations, excellent for proactive maintenance.
- AIDA64 It is a classic with full system coverage, while G Smart Control provides a graphical interface for smartmontools with testing and monitoring.
- For Samsung SSD, Samsung Magician adds firmware management, profiles, and benchmarks. And if you prefer free software, Open Hardware Monitor monitors temperatures, fans and system load.
- En Mac, there is no native CrystalDiskInfo; DriveDx is the recommended alternative, with SMART support and its own metrics.
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