Format it.Check its health.Next drive.
Mesodisk wipes and formats each disk you plug in, then shows its full S.M.A.R.T. report from CrystalDiskInfo. It's built for working through a stack of drives.
Free and open source. A single portable exe for Windows 10 and 11 with nothing to install.
Press ARM, then insert a drive.
| 05 | Reallocated Sectors Count | 0 |
| 09 | Power-On Hours | 12 |
| 0C | Power Cycle Count | 30 |
| C2 | Temperature | 31 °C |
One cycle per drive
Set it up once, then keep swapping drives. The results stay on screen until the next new disk goes in.
Arm
Choose FAT32, exFAT or NTFS and a volume label, then press ARM. If no new disk arrives for 15 minutes, Mesodisk disarms itself.
Insert a drive
Mesodisk erases it, creates one partition and quick-formats it. Extra drives inserted together are queued and handled one at a time.
Read the result
The health verdict, every S.M.A.R.T. attribute, and the new file system, label, drive letter and free space appear on one screen.
It won't touch the wrong disk
Formatting erases data, so Mesodisk refuses to format a disk if:
- it was connected when Mesodisk started, even if you unplug it and plug it back in
- Windows reports it as the boot or system disk
- it is a virtual disk, or a card reader with no card in it
- Mesodisk is disarmed. The drive still gets its health check, and a confirmed "Format this disk now" is available.
What you see
Everything about the drive you just processed, on one screen.
- Health verdict
- CrystalDiskInfo's Good, Caution or Bad, with the health percentage, temperature, power-on hours and data written.
- Format summary
- File system, label, drive letter, capacity and available space, or the reason the drive wasn't formatted.
- All S.M.A.R.T. attributes
- Current, worst, threshold and raw values. Failing attributes are shown in red and warning signs in amber.
- Full report
- CrystalDiskInfo's own text report for the drive, plus the diskpart output.
Mesodisk
| File | Size | SHA-256 |
|---|---|---|
| See all files on GitHub |
The exe isn't code-signed yet, so Windows SmartScreen may say the publisher is unknown. Choose More info, then Run anyway. Mesodisk asks for Administrator rights because Windows only lets elevated programs format disks and read S.M.A.R.T. data. Previous versions