TestDisk operator playbook

Expect a TTY-native workflow: arrows, Enter, occasional letter shortcuts—no ribbon bars or drag-and-drop disk charts.

Cold launch checklist

Unpack archives onto media that is not the sick spindle. On Windows invoke testdisk_win.exe; on UNIX-like shells run testdisk (often with elevated privileges when touching system disks).

Session logging

Accept Create when prompted—logs capture geometry guesses, writes declined, and timestamps your decisions if something escalates to support forums.

Prove which platter you touched

Cross-reference capacity strings with Disk Management, lsblk, or vendor stickers. Mis-clicks rewrite strangers’ weddings. Keep staging volumes disconnected until you are deliberate.

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Declare the partition grammar

Intel/EFI GPT/Mac schemas matter—accept auto guesses only when they align with how the machine shipped. Forcing the wrong grammar yields imaginary slices.

Hunting vanished layouts

Inside Analyze you’ll bounce between:

• Quick Search — cheap geometry sniffing for classic PC partitions.
• Deeper Search — slower sweep that peeks at FAT/NTFS/ext backup metadata hiding near cylinder edges.

Preview files inside candidates before letting TestDisk rewrite partition tables—typing errors become permanent fast.

Sanity-check recovered slices

List folders while still inside TestDisk whenever the filesystem cooperates; mismatched labels beat guessing from cylinder math alone.

Advanced pulls & undeletes

Advanced → Undelete/list paths grab metadata-backed files. Always aim exports at different iron—never loop recovered TIFFs back onto the donor disk.

Stage recovered payloads

Pick roomy NTFS/APFS/ext destinations, spot-check checksums on a handful of files, then clone again—single copies are not a backup.

Symptom cheat sheet

Operator habits

• Never stage restores onto the bleeding disk.
• Re-read the highlighted row before every destructive keystroke.
• Mirror anything precious immediately after rescue.
• Pair curiosity with logs so rollback notes exist.

Snippet locker

TestDisk ignores Registry fluff—it speaks directly to partition descriptors and boot straps. Copy/paste-friendly reminders live below.

# Linux / macOS (may require sudo for system disks)
testdisk

# Windows: run from the folder where you extracted TestDisk (e.g. testdisk-7.2.win)
testdisk_win.exe

# Windows (PowerShell or Command Prompt)
certutil -hashfile testdisk-7.2.win.zip SHA256

# Linux / macOS
sha256sum testdisk-7.2.linux.tar.bz2
# or
shasum -a 256 testdisk-7.2.mac.zip

# Match disk size and model to TestDisk's list
lsblk -o NAME,SIZE,MODEL
# or
fdisk -l

First-time jitters

Pause on each cyan prompt—nothing auto-advances. Logs plus wiki screenshots beat frantic tapping. Still foggy? Step through CGSecurity’s wiki side-by-side.

When carving beats geometry

If catalogs evaporated after destructive formats, lean on signature scanning instead of forcing partition fantasies.