CrystalDiskInfo for PC: How to Download and Install on Windows (2026 Guide)

Hard drives and SSDs rarely fail without warning — they quietly report declining health for months beforehand, but Windows never shows you those signals. By the time most people notice strange noises, slowdowns, or corrupted files, it is already too late to save everything.

This guide shows you how to download CrystalDiskInfo for PC from its official website, install it on Windows 11 or 10, and check your drive’s health in under a minute. Requirements, key features, and honest answers about cost are covered below.

What Is CrystalDiskInfo?

CrystalDiskInfo is a free, open-source disk health monitoring utility for Windows, developed by hiyohiyo under the Crystal Dew World project (the same project behind the CrystalDiskMark benchmark). It reads the S.M.A.R.T. data that modern hard drives and SSDs record about themselves — temperature, power-on hours, error counts, and wear indicators — and presents it in one clear screen.

Instead of raw numbers you would need an engineering degree to interpret, CrystalDiskInfo gives every drive a simple health verdict — Good, Caution, or Bad — shown as a percentage. If a drive starts deteriorating, you see it early, while there is still time to back up your files and replace the drive calmly instead of in a panic.

Key Features of CrystalDiskInfo

Instant health verdict: Every drive gets a clear Good, Caution, or Bad status with an overall health percentage.
Temperature monitoring: Live drive temperature readings, so you can spot overheating before it causes damage.
Full S.M.A.R.T. details: Raw attribute values for reallocated sectors, spin retries, error rates, and SSD wear-level indicators.
Drive information at a glance: Model, firmware, interface, capacity, power-on count, and total hours for every connected drive.
Supports HDDs and SSDs: Works with SATA, NVMe, and many USB-connected drives.
Resident monitoring and alerts: Optional tray icon and temperature display, plus mail or sound alerts if a drive’s health changes.
Free and open source: No ads, no premium tier, no locked features — the complete tool is free.

System Requirements

Operating System: Windows 11, Windows 10, Windows 8, or Windows 7
Processor: Any modern Intel or AMD CPU — the tool is very light
RAM: 1 GB is plenty
Storage: Around 10 MB for the program
Internet: Only needed for the initial download
Account: None — no sign-up or registration
Drives: Works with most internal and USB HDDs and SSDs that report S.M.A.R.T. data

How to Download CrystalDiskInfo (Official Method)

CrystalDiskInfo is often repackaged by third-party download portals that add their own installers and bundled extras. Download it only from the official Crystal Dew World website, where the developer publishes the genuine version free of charge.

Official Website: Download CrystalDiskInfo from the official website

Step-by-Step Installation

Open the official CrystalDiskInfo page linked above in your browser.
Click the download button for the standard edition installer (the file is hosted on the project’s official mirror).
Save the installer, named like CrystalDiskInfo_9_x_x.exe, to your Downloads folder.
Double-click the file and approve the Windows permission prompt.
Choose your language, accept the licence agreement, and keep the default installation folder.
Click Install, choosing whether you want a desktop shortcut.
Click Finish and launch CrystalDiskInfo from the Start menu.

Edition note: The official page also lists themed “Shizuku” and “Kurei Kei” editions — the exact same program with different artwork. The standard edition suits most people, and a portable ZIP version exists if you prefer not to install.

How to Check Your Drive’s Health with CrystalDiskInfo

Open CrystalDiskInfo — it scans your drives automatically on launch.
Look at the big Health Status box for your main drive: a blue “Good” with a high percentage means the drive is healthy.
Check the Temperature reading underneath; drives are happiest well below 50°C under normal use.
If you have several drives, click each drive’s tab or icon at the top and check every health status in turn.
Scroll through the S.M.A.R.T. attribute list: values highlighted in yellow or red deserve attention, especially Reallocated Sectors.
If any drive shows “Caution” or “Bad”, back up its important files immediately — treat that warning as the drive asking to be replaced soon.

Is CrystalDiskInfo Really Free?

Yes, completely. CrystalDiskInfo is free and open-source software, released by the Crystal Dew World project for anyone to use at home or at work. There is no trial period, no premium edition with extra features, and no licence key. The developer supports the project through donations and the download site’s mirrors rather than by charging users. Any website asking you to pay for CrystalDiskInfo itself is not an official source — use the link in this guide instead.

Frequently Asked Questions

Is CrystalDiskInfo safe to download and use?
Yes, from the official Crystal Dew World website linked above. It is a well-known open-source utility used by technicians worldwide, and it only reads drive information — it never changes or deletes anything. Avoid third-party portals, which often bundle unwanted software with popular free tools.

What does a “Caution” health status mean?
It means one or more S.M.A.R.T. values have crossed the developer’s caution thresholds — for example, the drive has started reallocating bad sectors. The drive has not failed yet, but it is showing early wear. Back up your data promptly and plan a replacement rather than trusting it with your only copies.

Can CrystalDiskInfo repair a failing drive?
No. CrystalDiskInfo is a monitoring and reporting tool; it tells you the state of your drive but cannot fix physical wear or damage. Its real value is warning you early enough to copy your data somewhere safe before the drive stops working.

Why does my SSD show a percentage but my old hard drive does not?
SSDs report a wear-level percentage based on how much of their rated lifespan has been used, so CrystalDiskInfo can show an exact figure. Traditional hard drives usually report health as a status (Good, Caution, Bad) derived from their S.M.A.R.T. attributes instead. The status colour is the part to watch.

Conclusion

CrystalDiskInfo takes thirty seconds to check and can save you from the worst surprise in computing: a dead drive full of your only copies. Install it from the official website, glance at your drives’ health today, and check again every few months.

Download CrystalDiskInfo from the Official Website

CrystalDiskInfo for PC: How to Download and Install on Windows (2026 Guide)