Attached a USB drive to your computer only to find it’s showing as RAW? This means you can’t access any data on it. This can activate a full-on panic mode, especially when your boss or professor is asking for a presentation, and you need the files on the USB to make one.
But don’t worry, RAW doesn’t mean your files are gone. This article explains why your USB might turn RAW and gives you free and professional options for USB data recovery. So, read till the end!
Part 1: Why Does USB Show as RAW?
When a USB drive shows as RAW, it means Windows can’t recognize its file system (like NTFS or FAT32), so it treats the drive as empty or damaged. This usually comes with three symptoms
- RAW status: The file system (which organizes your files) is broken or missing.
- “You need to format the disk” error: Windows asks you to format the drive because it can’t read it.
- Missing files: Your files may still be there, but Windows can’t find them.
The frequent reasons for a RAW USB include:
- Pulling the USB out while files are being written.
- Power surge or sudden disconnect.
- File system corruption due to a virus or bad sectors.
- Physical damage to the USB controller or memory chip.
But the good news is that in most cases (about 90%), if the USB becomes RAW due to software issues, your data is still safe and can be recovered. So, you can try free USB data recovery methods first, as mentioned in the later section. If they don’t do the job, then use a professional RAW USB recovery tool.
Part 2: What NOT to Do After Data Loss?
Many people lose their data forever, not because the damage is serious, but because they make mistakes after the RAW USB problem happens. Here’s a simple list of what NOT to do and why each action can be risky:
Don’t Format the USB Immediately
When Windows shows the message “You need to format the disk,” it may seem like the right way to fix the USB, but formatting doesn’t repair your data. It removes important file information.
A quick format deletes the file system structure, making recovery much harder, while a full format erases everything completely, making recovery impossible. Instead, click “Cancel” and avoid formatting. If the message keeps popping up, close File Explorer and use a RAW USB recovery software.
Don’t Copy New Files to It
When a USB shows as RAW, Windows sees it as empty space. If you add new files, they can overwrite your old (hidden) data and permanently destroy it. Data recovery only functions if the old data hasn’t been overwritten. So, don’t save anything to the USB. Also, when you recover data from a USB with a recovery tool, always save it to your computer or another drive, not the same USB.
Avoid Repeated Plugging/Unplugging
Every time you plug in the RAW USB, Windows may try to fix it or write small files, which can worsen the problem if the file system is damaged. If the hardware is failing, repeated plugging can also cause more damage due to heat and power cycles. So, only plug it in when you’re ready to recover data. If the drive makes strange noises or isn’t detected, unplug it right away and stop using it.
Don’t Run Random Repair Tools Blindly
When looking for a fix, many people try random repair tools, but these can make things worse. Running dubious tools from unverified sources on a RAW drive can damage the remaining file structure and turn files into unusable data, making recovery harder.
Some online repair tools can also be unsafe or cause more damage if they try to fix the drive without backing up data first. Instead, use only a professional RAW USB recovery software that scans the drive without changing anything. After recovering your files to another location, you can then repair or format the USB.
Part 3: How to Recover Data From a Corrupted or Raw USB Drive?
Here’s how to recover data from a USB that’s RAW or corrupted with 3 effective methods. But each solution is for a different scenario. So, pick wisely:
Method 1: Recover Data From Raw USB Without Formatting (Best Way)
Many people think formatting is the first step to fix a RAW USB, but it can permanently delete your data. Thus, the best option is to employ a professional RAW USB recovery tool like 4DDiG Data Recovery. It doesn’t depend on Windows recognizing the file system. Instead, it can scan every part of the drive, find files by their internal patterns, and rebuild them even if the file system is gone.
It also operates in read-only mode, meaning it doesn’t change anything on the USB and saves recovered files to another location. Besides, it can support different data loss scenarios, like corrupted partitions, damaged file systems, quick formats, virus issues, and even some bad sectors. Here are the features it offers:
- It can retrieve 2000+ files, like photos, RAW files, videos, documents, and music
- The tool can reclaim lost data due to malware, missing partitions, crashes, or boot failures.
- It supports numerous storage media, including USBs, SSDs, HDDs, SD cards, digital cameras, drones, etc.
- The tool offers a file preview for rescued files, free updates, and technical support.
- It allows you to modify filter tags and input keywords to find exact matches.
- You can also perform selective file recovery.
Here’s how to recover data from a USB that’s RAW or corrupted with this tool:
Step 1: Install and execute the USB disk recovery tool on your computer. Then, attach the RAW USB to your computer. Pick the file types to retrieve. Hit “Scan.”
Step 2: You can pause or stop the scan once you recover your desired files. Preview them or adjust filter tags or input keywords in the search field to find exact files.
Step 3: Choose the recovered files you wish to save. Next, hit “Recover” to transfer them to your computer or cloud drive.
Method 2: Use CMD to Fix USB (Without Data Recovery Guarantee)
The Windows built-in Command Prompt, such as CHKDSK, can scan the USB drive to fix file system errors and check for bad sectors. But on a RAW drive, where the file system is missing or damaged, CHKDSK may fail or try to rebuild things in a way that removes important data. It also writes changes to the drive, which can overwrite recoverable files or turn them into broken “.chk” fragments with no names or structure.
Besides, CHKDSK doesn’t recover data, and may delete files it can’t understand, which can cause permanent data loss. Due to this risk, you should only use CHKDSK after you’ve safely recovered your files somewhere else. Treat it as a last-step repair tool, not a recovery solution. With that being said, here’s how to employ CMD to fix the RAW USB:
Step 1: Attach the problematic USB to the computer. Type “cmd” in the Windows search. Then, execute the “Command Prompt.”
Step 2: Type the following command. Hit “Enter” afterward:
CHKDSK [Here place the drive letter of the RAW USB]: /f/r/x
Method 3: Assign a Drive Letter (If USB Not Showing)
Assigning a drive letter is a safe first step if your USB shows up in Disk Management but not in File Explorer. It functions only when the file system is healthy, e.g., NTFS or FAT32, and the issue is just a missing letter. However, if the drive shows as RAW, this method won’t recover your data or make files visible. In that case, you’ll need to use a professional RAW USB recovery software like 4DDiG Data Recovery. Follow the steps beneath to assign a drive letter to the USB:
Step 1: Attach the problematic USB to the computer. Right-click the “Start” button. Then, select “Disk Management.”
Step 2: Right-click the problematic USB. Then, select “Change Drive Letter and Paths.”
Step 3: Click “Add.” Choose a new unused letter (like M–Z), and confirm. Hit “OK.” This will assign a new letter to your USB, and it should now appear in the File Explorer.
Final Words
A RAW or corrupted USB doesn’t always mean your data is lost. Usually, only the file system is damaged, so your files can still be recovered. But just avoid mistakes like formatting the drive, adding new files, or using unsafe recovery tools, as these can erase your data permanently.
For a safe USB data recovery, you can employ a professional tool, like 4DDiG Data Recovery. It scans the RAW USB without changing anything, can retrieve files from it with a high success rate, and saves them to another location.
