CHKDSK FAILED ON RAW DRIVES? TRY THESE EXPERT-APPROVED WORKAROUNDS
You plugged in your external drive, fired up Command Prompt, typed chkdsk /f, and got the dreaded message: “CHKDSK is not available for RAW drives.” Your files are still there—you can see the drive letter—but Windows refuses to scan or fix it. Here’s exactly what to do next, broken into three battle-tested phases: quick recovery, deep repair, and last-resort extraction.
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PHASE 1: QUICK RECOVERY – TRY THESE FIRST (UNDER 10 MINUTES)
**USE DISKPART TO CLEAR THE RAW FLAG**
Open Command Prompt as Administrator, type diskpart, then list disk. Select your RAW disk with select disk X (replace X with the correct number). Type attributes disk clear readonly and exit. This often flips the free file recovery software for Mac back to NTFS or FAT32 without data loss.
**REASSIGN THE DRIVE LETTER VIA DISK MANAGEMENT**
Press Win+X, choose Disk Management. Right-click the RAW partition, pick Change Drive Letter and Paths. Remove the current letter, click Add, assign a new one (like Z:). Sometimes the RAW label is just a glitch in the mount point.
**FORCE A FILE SYSTEM REMOUNT WITH DEVICECLEANUP**
Download the free DeviceCleanup tool from Uwe Sieber’s site. Run it as admin, find your RAW drive in the list, right-click and select Remove. Unplug the drive, wait 10 seconds, plug it back in. Windows may auto-remount it as a healthy volume.
**TRY THE /X SWITCH IN CHKDSK**
Open Command Prompt as admin, type chkdsk X: /f /x (replace X with your drive letter). The /x switch forces a dismount first, which can bypass the RAW lockout. If it still fails, move to Phase 2.
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PHASE 2: DEEP REPAIR – TOOLS THAT REBUILD THE FILE SYSTEM
**RUN TESTDISK TO REWRITE THE PARTITION TABLE**
Download TestDisk from CGSecurity. Launch testdisk_win.exe, select your RAW disk, choose Intel partition type, then Analyse. If TestDisk finds a lost partition, press Enter, then Write to save the new table. Reboot and check if the drive reappears.
**USE DMDE TO REPAIR THE BOOT SECTOR**
Grab DMDE (free edition) from dmde.com. Open it, pick your RAW disk, click Full Scan. When the scan finishes, right-click the found partition, choose Rebuild BS. DMDE will recreate the boot sector without touching your files. Save changes and reboot.
**FIX THE MBR WITH BOOTICE**
Download BOOTICE from majorgeeks.com. Open it, select your RAW disk, click Process MBR. Choose Windows NT 6.x MBR, then Install/Config. This rewrites the master boot record, which often triggers Windows to recognize the drive again.
**RECOVER THE FILE SYSTEM WITH MINITOOL PARTITION WIZARD**
Install MiniTool Partition Wizard Free. Right-click the RAW partition, select Check File System. Choose Check & fix detected errors, then Start. The tool will attempt to repair the MFT or FAT tables in-place.
**USE AOMEI PARTITION ASSISTANT TO CONVERT RAW TO NTFS**
Open AOMEI Partition Assistant Standard. Right-click the RAW partition, select Advanced > Check Partition. Pick Check partition and fix errors, then OK. If that fails, use the Convert to NTFS option under Partition Operations.
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PHASE 3: LAST-RESORT EXTRACTION – PULL FILES BEFORE FORMATTING
**EXTRACT FILES WITH PHOTOREC (NO FILE NAMES)**
Download PhotoRec from CGSecurity. Run photorec_win.exe, select your RAW disk, choose Whole disk, then Other for file system. PhotoRec will carve files by signature, saving them to a folder on your main drive. Expect generic names like f1234567.jpg.
**USE R-STUDIO TO RECOVER FILES WITH ORIGINAL NAMES**
Install R-Studio (trial version). Scan the RAW disk, then open the found files in the preview pane. Right-click any folder, choose Recover Marked, and save to a different physical drive. R-Studio preserves folder structure and file names.
**MOUNT THE RAW DRIVE AS A VIRTUAL DISK WITH OSFMOUNT**
Download OSFMount from osforensics.com. Open it, click Mount new, select your RAW drive, choose Mount as removable media. The drive will appear as a new letter in Explorer, letting you copy files directly before any repair attempts.
**CREATE A DISK IMAGE WITH DDRESCUE FOR SAFE EXTRACTION**
Download ddrescue from GNU.org. Open Command Prompt as admin, type ddrescue -f X: C:recovery.img C:logfile.log (replace X with your RAW drive letter). This creates a bit-for-bit copy, which you can then scan with recovery tools without risking further damage.
**USE GETDATABACK SIMPLE FOR FAST FILE RECOVERY**
Install GetDataBack Simple. Select your RAW drive, choose the default scan, then wait for the file tree to populate. Click Copy to save files to another drive. The tool’s simple interface skips complex settings, ideal for urgent recovery.
**TRY RECUVA IN DEEP SCAN MODE**
Open Recuva, select your RAW drive, enable Deep Scan. When the scan finishes, check the box next to the files you want, then Recover. Recuva’s deep scan digs deeper than quick scan, often finding files that other tools miss.
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WHEN ALL ELSE FAILS: FORMAT AND RESTORE FROM BACKUP
If none of the above works, your last option is to format the drive. Right-click the RAW partition in Disk Management, choose Format, select NTFS or exFAT, and uncheck Quick Format. After formatting, use a file recovery tool to scan the empty drive—sometimes files reappear after a full format. If you have a backup, restore it now. If not, treat this as a lesson: RAW drives are a symptom of sudden disconnection or corruption, so always eject safely and keep backups.