# CrystalDiskInfo

Application: Crystal Dew World

Also called crystal disk info, cdi, diskinfo64

Crystal Dew World, System

A SMART health readout from Crystal Dew World. The 64-bit process is DiskInfo64.exe. It is not CrystalDiskMark and a caution status is not always a dying drive.

## What you need to know

CrystalDiskInfo is SMART health. CrystalDiskMark is a speed bench.

Crystal Dew World's CrystalDiskInfo shows disk health attributes. Get it from crystalmark.info. A caution tile is not a speed score and it is not always a dying drive. DiskMark64.exe is the other app.

- **What is it?**: A SMART health readout

  **Same as CrystalDiskMark?**: No. Mark is the speed bench

  **Caution means dead?**: No. Back up and read the attribute

Feex says

If CrystalDiskInfo says Caution, I would copy the files off and check the attribute, not run CrystalDiskMark as a health test. A slow bench is not the same as a SMART fail.

## What is CrystalDiskInfo?

CrystalDiskInfo reads SMART and NVMe health. DiskInfo64.exe is the usual 64-bit window. CrystalDiskMark is the sibling speed bench with DiskMark64.exe.

## If you have never used it

If you want to read SMART attributes, CrystalDiskInfo is hiyohiyo's health window. Download it from crystalmark.info. A Caution or Bad tile is a SMART warning, not a bench score. It is not CrystalDiskMark, which measures speed. It is not a dying-drive verdict by itself.

## What is it used for?

**Read SMART temperature and reallocated sectors**

Those attributes are health clues. They are not sequential-read MB/s from CrystalDiskMark.

**Watch a Caution status**

Caution means an attribute crossed a threshold. Back up and investigate. It is not automatic proof the drive is dead today.

**USB and NVMe bridges**

Some enclosures hide SMART. That is a bridge limit, not a missing DiskMark install.

## Who is it for?

- People who heard a click or saw a Windows disk warning
- Anyone comparing two Crystal Dew apps and picking the wrong exe
- Technicians who want a freeware SMART window

## Current status

CrystalDiskInfo (2008) is a current disk health utility from Crystal Dew World. The vendor still points Windows users at https://crystalmark.info/en/software/crystaldiskinfo/.

## How old is it?

CrystalDiskInfo appeared in 2008, a year after CrystalDiskMark. Both still live at crystalmark.info. It is not a Windows 11 Settings page and not the old manufacturer "drive fitness" DOS tools.

## Versions

Major channels first. Exact build numbers are not all verified here.

Standard

Shizuku / Aoi editions

Portable

## System requirements

Values follow the publisher's public guidance. Workload still changes the real need.

### Minimum

| Operating system | Windows 10 or Windows 11, per Crystal Dew World's current DiskInfo page |
| ---------------- | ----------------------------------------------------------------------- |
| RAM              | Enough for Windows plus this app. Heavy projects want more.             |

## Resource profile

- **CPU demand**: Low while the window is open

  **Disk demand**: SMART queries. Not a fill-disk bench

## Installed processes

These executables belong to this product when it is installed.

| DiskInfo64.exe  | SMART health window           |
| --------------- | ----------------------------- |
| DiskInfoA64.exe | Aoi edition on some downloads |

## Startup components

CrystalDiskInfo can start in the tray to watch temperature. That is an option, not a Windows disk service.

## File locations

| Typical install | C:\Program Files\CrystalDiskInfo\\ |
| --------------- | ---------------------------------- |

## File formats

Reads SMART. It does not write a bench file the way DiskMark does

## Common problems

### People run DiskMark when they meant DiskInfo

Speed numbers do not replace SMART. Check the window title. DiskInfo64 is health. DiskMark64 is the bench.

### Caution treated as "replace today or else"

Back up first. Then read which attribute failed. A temperature caution is not the same as reallocated-sector growth.

## Getting unstuck

### Download from crystalmark.info, not a "CrystalDisk Pro" host

The vendor publishes DiskInfo and DiskMark as two products. This page is the health one.

### If every USB disk says unknown, try a different enclosure or a SATA dock

Many bridges skip SMART. That is hardware, not a broken CrystalDiskMark install.

### Treat Good as "no SMART alarm", not a warranty

SMART can miss some failures. Backups still matter. A high CrystalDiskMark score does not prove health.

## Alternatives

Manufacturer tools and HWiNFO also show SMART. CrystalDiskMark is the speed sibling, not a substitute.

## Official help and downloads

Start with the vendor. Random exe sites are not a support channel.

| Download      | [crystalmark.info/en/software/crystaldiskinfo/ ](https://crystalmark.info/en/software/crystaldiskinfo/)Official installer or vendor page |
| ------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
| Help          | [crystalmark.info/en/software/crystaldiskinfo/ ](https://crystalmark.info/en/software/crystaldiskinfo/)Vendor support                    |
| Official site | [crystalmark.info/en/software/crystaldiskinfo/ ](https://crystalmark.info/en/software/crystaldiskinfo/)Start here, not a random exe host |

## Related hardware

This app reads the drive's own SMART counters. It does not add Feex sensors. The drive firmware is the source.

## Technical details

Technical details

Vendor version numbers change. This article does not pin a build.

## Related

These entities connect to this article. Type is shown on every link.

[CrystalDiskMark: Application](https://feex.it/wiki/software/crystaldiskmark)[How to read Task Manager: Guide](https://feex.it/wiki/software/system/how-to-read-task-manager)

## Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. [How we research](https://feex.it/wiki/research).

- [CrystalDiskInfo official site ](https://crystalmark.info/en/software/crystaldiskinfo/)· Vendor product page
- [CrystalDiskInfo help ](https://crystalmark.info/en/software/crystaldiskinfo/)· Vendor support
- [Crystal Dew World ](https://crystalmark.info/en/)· Vendor home for DiskInfo and DiskMark
- [Foxhole process map ](https://foxhole.feex.it/)· First-party samples on Windows PCs. Not a lab benchmark.

## Was this article useful?

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Quick facts

The short identity of this page. Specs, sources, and the full story stay in the article.

- **Developer**: Crystal Dew World

  **Category**: Disk health utility

  **Process**: DiskInfo64.exe

  **License**: Freeware

  **First released**: 2008

  **Official site**: [crystalmark.info/crystaldiskinfo](https://crystalmark.info/en/software/crystaldiskinfo/)

  **Mapped by Feex**: Seen on Windows PCs in Foxhole

Feex Reviewed: Last verified August 2026

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Source: [Canonical Feex Wiki page](https://feex.it/wiki/software/crystaldiskinfo/)

[Developer guide](https://feex.it/wiki/developers/) | [API policy](https://feex.it/developers/api-policy/) | [Agent guidance](https://feex.it/wiki/llms.txt)