Forum Discussion
ColoradoSky
Dec 17, 2024Copper Contributor
How to recover formatted external hard drive using cmd?
A few days ago, I mistakenly formatted my external hard drive (Seagate 1TB) while trying to clean up the disk on my Windows 10 PC. Unfortunately, I realized shortly after the formatting that I had im...
yishidehearttiao
May 26, 2025Copper Contributor
Since other users have already explained how to use Windows File Recovery, I want to share how to recover your formatted external hard drive using another free command-line tool called TestD1sk. It’s great for recovering files after accidental formatting, especially if you haven't written new data to the drive. Here's how to use it:
- Download and unzip TestD1sk from cgsecurity.org.
- Run testdisk_win.exe as Administrator.
- Select Create to start a new log.
- Choose your external hard drive from the list.
- Select the partition table type (usually Intel/PC).
- Choose Analyse to scan for lost partitions.
- If partitions are found, select and Write them back to the disk.
- Optionally, use Advanced > List to browse and copy files to another drive.
If these free tools don’t recover your data fully or the drive is badly damaged, you can try pro tools like 4DD1G Data Recovery. It’s user-friendly, supports deep scan for formatted drives, and has a higher success rate for complex data loss.