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USB turned RAW and contains important files
Quote from nervv on April 29, 2026, 7:05 amHi everyone, I'm hoping someone here can help me out, because I'm pretty stressed about this.
I had been using my USB drive normally for months without any issues. Yesterday I plugged it into my Windows 11 PC as usual, and instead of opening normally, Windows popped up with the message "You need to format the disk in drive E: before you can use it." I did not format it. When I checked Disk Management, the drive showed up but the file system was listed as RAW instead of exFAT like it's always been. I can see the drive is there, but I cannot open it or access anything on it.
I'm not entirely sure what caused it. The drive itself is a SanDisk Ultra USB 3.0 flash drive, 64 GB, originally formatted as exFAT. It shows up in Disk Management as drive E: but with the file system listed as RAW. I'm running Windows 11 Pro and tested the drive on two different PCs, same result on both.
I really need to recover data from this RAW USB drive without losing any of it. Any advice on how to approach this would be hugely appreciated. Happy to provide more details if needed!
Thanks so much!
Hi everyone, I'm hoping someone here can help me out, because I'm pretty stressed about this.
I had been using my USB drive normally for months without any issues. Yesterday I plugged it into my Windows 11 PC as usual, and instead of opening normally, Windows popped up with the message "You need to format the disk in drive E: before you can use it." I did not format it. When I checked Disk Management, the drive showed up but the file system was listed as RAW instead of exFAT like it's always been. I can see the drive is there, but I cannot open it or access anything on it.
I'm not entirely sure what caused it. The drive itself is a SanDisk Ultra USB 3.0 flash drive, 64 GB, originally formatted as exFAT. It shows up in Disk Management as drive E: but with the file system listed as RAW. I'm running Windows 11 Pro and tested the drive on two different PCs, same result on both.
I really need to recover data from this RAW USB drive without losing any of it. Any advice on how to approach this would be hugely appreciated. Happy to provide more details if needed!
Thanks so much!
Quote from DataNerd on April 29, 2026, 7:31 amSorry to hear that, this is always a stressful situation. Before anyone can give you proper advice, it would help to know a few things. How old is the drive roughly, and how heavily have you been using it? Also, when Windows asks you to format it, does it show the full 64 GB capacity or does it show something weird like 0 bytes or a much smaller number? That detail matters a lot for figuring out what went wrong.
Sorry to hear that, this is always a stressful situation. Before anyone can give you proper advice, it would help to know a few things. How old is the drive roughly, and how heavily have you been using it? Also, when Windows asks you to format it, does it show the full 64 GB capacity or does it show something weird like 0 bytes or a much smaller number? That detail matters a lot for figuring out what went wrong.
Quote from gareth_w on April 29, 2026, 8:03 am@nervv I had almost the exact same thing happen with a Kingston USB a few months ago. In my case it turned RAW after I pulled it out without ejecting it properly. The files were still there, Windows just couldn’t read the file system anymore.
What helped me was using a data recovery tool instead of trying to fix the drive right away. I used Disk Drill and it actually found most of my files even though the drive showed up as RAW. I recovered everything to another drive first, and only after that I reformatted the USB.
From what you described, it sounds more like logical corruption than physical failure, especially since it shows the correct size on both PCs.
@nervv I had almost the exact same thing happen with a Kingston USB a few months ago. In my case it turned RAW after I pulled it out without ejecting it properly. The files were still there, Windows just couldn’t read the file system anymore.
What helped me was using a data recovery tool instead of trying to fix the drive right away. I used Disk Drill and it actually found most of my files even though the drive showed up as RAW. I recovered everything to another drive first, and only after that I reformatted the USB.
From what you described, it sounds more like logical corruption than physical failure, especially since it shows the correct size on both PCs.
Quote from DataNerd on April 29, 2026, 8:42 amI agree with @gareth_w. The fact that it behaves the same on two different machines kind of rules out a simple driver issue.
I agree with @gareth_w. The fact that it behaves the same on two different machines kind of rules out a simple driver issue.
Quote from bryan on April 29, 2026, 9:15 am@nervv when you open Disk Management does it show the partition as healthy RAW, or does it say unallocated? Those are slightly different situations. Also, did anything interrupt a file transfer recently, like a system freeze or unplug?
@nervv when you open Disk Management does it show the partition as healthy RAW, or does it say unallocated? Those are slightly different situations. Also, did anything interrupt a file transfer recently, like a system freeze or unplug?
Quote from nervv on April 29, 2026, 10:17 am@datanerd The drive is about two years old and I've been using it pretty regularly, mostly for transferring work files between my home and office PC. As for the capacity, it actually does show the full 64 GB in Disk Management, so nothing weird there. That's a relief I guess, at least it's not showing zero.
@datanerd The drive is about two years old and I've been using it pretty regularly, mostly for transferring work files between my home and office PC. As for the capacity, it actually does show the full 64 GB in Disk Management, so nothing weird there. That's a relief I guess, at least it's not showing zero.
Quote from nervv on April 29, 2026, 10:28 am@bryan I just went back and checked Disk Management more carefully. It shows the partition as RAW, not unallocated, so the partition is still there, Windows just can't read the file system. As for file transfers, now that you mention it, yes, I think there was a moment a few days ago where I unplugged the drive while something might still have been copying. I didn't think much of it at the time but looking back that was probably the moment everything went wrong.
@bryan I just went back and checked Disk Management more carefully. It shows the partition as RAW, not unallocated, so the partition is still there, Windows just can't read the file system. As for file transfers, now that you mention it, yes, I think there was a moment a few days ago where I unplugged the drive while something might still have been copying. I didn't think much of it at the time but looking back that was probably the moment everything went wrong.
Quote from DataRecoverExpert on April 29, 2026, 10:57 amWhat you describe lines up very closely with file system corruption after an unsafe removal. The partition still exists and the full capacity shows correctly, so the controller likely still works and the data area has not been wiped. The problem is that Windows can no longer interpret the exFAT structure, so it labels it as RAW.
At this stage, the most important thing is to avoid anything that writes to the drive. That includes formatting, CHKDSK, or any “repair” prompts from Windows. Those actions can overwrite metadata that recovery tools rely on.
The safer approach is to treat the USB as read-only and extract the data first. A tool like Disk Drill works well in these cases because it scans the drive at a low level and reconstructs files even when the file system is damaged. It does not modify the source unless you explicitly choose to, so scanning is safe.
If you want a step-by-step reference, this guide explains the exact process and what to expect during recovery:
https://www.cleverfiles.com/howto/recover-data-raw-usb-drive.htmlOne more practical note from experience: recover the files to a different drive, not back to the USB. Once you confirm your data is safe, you can format the USB and test it again. If the same issue appears after a fresh format, then the drive itself may start to fail and it’s better to replace it. Right now, your situation still looks recoverable, so focus on getting the data off first and avoid any repair attempts until that part is done.
What you describe lines up very closely with file system corruption after an unsafe removal. The partition still exists and the full capacity shows correctly, so the controller likely still works and the data area has not been wiped. The problem is that Windows can no longer interpret the exFAT structure, so it labels it as RAW.
At this stage, the most important thing is to avoid anything that writes to the drive. That includes formatting, CHKDSK, or any “repair” prompts from Windows. Those actions can overwrite metadata that recovery tools rely on.
The safer approach is to treat the USB as read-only and extract the data first. A tool like Disk Drill works well in these cases because it scans the drive at a low level and reconstructs files even when the file system is damaged. It does not modify the source unless you explicitly choose to, so scanning is safe.
If you want a step-by-step reference, this guide explains the exact process and what to expect during recovery:
https://www.cleverfiles.com/howto/recover-data-raw-usb-drive.html
One more practical note from experience: recover the files to a different drive, not back to the USB. Once you confirm your data is safe, you can format the USB and test it again. If the same issue appears after a fresh format, then the drive itself may start to fail and it’s better to replace it. Right now, your situation still looks recoverable, so focus on getting the data off first and avoid any repair attempts until that part is done.
Quote from bryan on April 29, 2026, 11:22 amMm… I have to agree with what @datarecoverexpert said. You can recover your files and fix usb later if you plan to use it. Here is another great guide - https://help.7datarecovery.com/raw-usb-drive-recovery/
Mm… I have to agree with what @datarecoverexpert said. You can recover your files and fix usb later if you plan to use it. Here is another great guide - https://help.7datarecovery.com/raw-usb-drive-recovery/
Quote from markus88 on April 29, 2026, 12:07 pmbro just use recuva its free and its from piriform same ppl who make ccleaner. dead simple to use, just point it at the drive and let it scan. recovered my sisters holiday photos off a knackered SD card last christmas no bother. might not get everything but its worth a shot before paying for owt
bro just use recuva its free and its from piriform same ppl who make ccleaner. dead simple to use, just point it at the drive and let it scan. recovered my sisters holiday photos off a knackered SD card last christmas no bother. might not get everything but its worth a shot before paying for owt
Quote from DataNerd on April 29, 2026, 12:34 pmRecuva is decent for photos and docs yeah but from what I've seen it can struggle a bit with heavily corrupted file systems, like proper RAW situations. It's more built for "oops I deleted something" rather than "the whole file system is gone" 😅 Not saying don't try it but just manage expectations. Disk Drill is a great option, but if you want a nuanced take, you can check the article here https://ratings.7datarecovery.com/usb-recovery-software/
Recuva is decent for photos and docs yeah but from what I've seen it can struggle a bit with heavily corrupted file systems, like proper RAW situations. It's more built for "oops I deleted something" rather than "the whole file system is gone" 😅 Not saying don't try it but just manage expectations. Disk Drill is a great option, but if you want a nuanced take, you can check the article here https://ratings.7datarecovery.com/usb-recovery-software/
Quote from phillyjohn on April 29, 2026, 1:18 pmTry this after you recover data https://youtu.be/xmyJKsatj9Y
Try this after you recover data https://youtu.be/xmyJKsatj9Y
Quote from nervv on April 29, 2026, 2:23 pm@phillyjohn thanks for the video, saving that for after I've gotten the files off!
@phillyjohn thanks for the video, saving that for after I've gotten the files off!
Quote from nervv on April 29, 2026, 2:27 pmSo… I installed Disk Drill. I do have a question though… When people are saying to make an image of the drive first, what exactly does that mean? Like I have a 1TB external hard drive sitting here that I barely use, would I save the image onto that? And how big would the image file actually be, would it be the full 64 GB even if most of that space is technically empty, or just the size of the actual files on it?
So… I installed Disk Drill. I do have a question though… When people are saying to make an image of the drive first, what exactly does that mean? Like I have a 1TB external hard drive sitting here that I barely use, would I save the image onto that? And how big would the image file actually be, would it be the full 64 GB even if most of that space is technically empty, or just the size of the actual files on it?
Quote from DataRecoverExpert on April 29, 2026, 2:50 pmQuote from nervv on April 29, 2026, 2:27 pmSo… I installed Disk Drill. I do have a question though… When people are saying to make an image of the drive first, what exactly does that mean? Like I have a 1TB external hard drive sitting here that I barely use, would I save the image onto that? And how big would the image file actually be, would it be the full 64 GB even if most of that space is technically empty, or just the size of the actual files on it?
Pretty much. A drive image is essentially a perfect snapshot of the entire drive, copied bit-for-bit onto another storage device. It captures everything, the file system structure, the partition data, even the empty-looking space — frozen exactly as it is right now. You then run your recovery attempts on that image file rather than the original drive. That way, no matter what happens during recovery, the original state is always preserved and you can always go back to it.
And yes, your 1TB external is perfect for this. That is exactly what you would save it onto. If you have any questions, check the official page about the backup https://www.cleverfiles.com/help/dmg-iso-backup.html. There is even a video-guide.
Quote from nervv on April 29, 2026, 2:27 pmSo… I installed Disk Drill. I do have a question though… When people are saying to make an image of the drive first, what exactly does that mean? Like I have a 1TB external hard drive sitting here that I barely use, would I save the image onto that? And how big would the image file actually be, would it be the full 64 GB even if most of that space is technically empty, or just the size of the actual files on it?
Pretty much. A drive image is essentially a perfect snapshot of the entire drive, copied bit-for-bit onto another storage device. It captures everything, the file system structure, the partition data, even the empty-looking space — frozen exactly as it is right now. You then run your recovery attempts on that image file rather than the original drive. That way, no matter what happens during recovery, the original state is always preserved and you can always go back to it.
And yes, your 1TB external is perfect for this. That is exactly what you would save it onto. If you have any questions, check the official page about the backup https://www.cleverfiles.com/help/dmg-iso-backup.html. There is even a video-guide.
Quote from nervv on April 29, 2026, 4:02 pm@datarecoverexpert Okay, so I recovered my files tnakfully, now I have a questions about fixes. They all seem quite complex. I checked the article u provided. Should I try all of them or… focus only on the one… I don’t understandw which may work in my situation.
@datarecoverexpert Okay, so I recovered my files tnakfully, now I have a questions about fixes. They all seem quite complex. I checked the article u provided. Should I try all of them or… focus only on the one… I don’t understandw which may work in my situation.
Quote from DataRecoverExpert on April 29, 2026, 4:38 pmQuote from nervv on April 29, 2026, 4:02 pm@datarecoverexpert Okay, so I recovered my files tnakfully, now I have a questions about fixes. They all seem quite complex. I checked the article u provided. Should I try all of them or… focus only on the one… I don’t understandw which may work in my situation.
Honestly, given what you've described, you don't really need to go through all those fixes. It's pretty much just file system corruption from the unsafe removal, so a simple reformat should be all it takes. You can do it in Disk Management. Those other fixes usually apply when the partition table itself is damaged or missing, but in your case the partition is still intact and only the file system became unreadable.
One thing worth mentioning though. Occasionally Windows will just refuse to format a RAW drive through Disk Management and throw an error for no obvious reason. If that happens, don't stress. You can do it through diskpart in Command Prompt instead, which tends to cut through those situations pretty reliably. You'd open CMD as administrator, run diskpart, list your disks, select the right one, clean it, create a new partition, and then format it as exFAT from there.
Just make absolutely sure you have the right disk selected before you run the clean command. It does not ask for confirmation and it wipes everything on whatever disk you've selected.
Quote from nervv on April 29, 2026, 4:02 pm@datarecoverexpert Okay, so I recovered my files tnakfully, now I have a questions about fixes. They all seem quite complex. I checked the article u provided. Should I try all of them or… focus only on the one… I don’t understandw which may work in my situation.
Honestly, given what you've described, you don't really need to go through all those fixes. It's pretty much just file system corruption from the unsafe removal, so a simple reformat should be all it takes. You can do it in Disk Management. Those other fixes usually apply when the partition table itself is damaged or missing, but in your case the partition is still intact and only the file system became unreadable.
One thing worth mentioning though. Occasionally Windows will just refuse to format a RAW drive through Disk Management and throw an error for no obvious reason. If that happens, don't stress. You can do it through diskpart in Command Prompt instead, which tends to cut through those situations pretty reliably. You'd open CMD as administrator, run diskpart, list your disks, select the right one, clean it, create a new partition, and then format it as exFAT from there.
Just make absolutely sure you have the right disk selected before you run the clean command. It does not ask for confirmation and it wipes everything on whatever disk you've selected.
Quote from nikaredko on April 29, 2026, 5:01 pm@nervv The one thing I would add: keep an eye on this drive going forward. Corruption after a single accidental unplug is common and not necessarily a sign the drive is failing. But if it goes RAW again without an obvious cause, or starts throwing write errors, that would be a signal to retire it and move on. Two years of regular use is not ancient, but flash drives do have a finite lifespan.
You are essentially done. Well handled!
@nervv The one thing I would add: keep an eye on this drive going forward. Corruption after a single accidental unplug is common and not necessarily a sign the drive is failing. But if it goes RAW again without an obvious cause, or starts throwing write errors, that would be a signal to retire it and move on. Two years of regular use is not ancient, but flash drives do have a finite lifespan.
You are essentially done. Well handled!
Quote from nervv on April 29, 2026, 6:50 pmWanted to come back and give a proper update since so many of you helped me out here, feels wrong to just disappear without saying what happened!
So I went with Disk Drill in the end. First thing I did was make a drive image onto my 1TB external like DataRecoverExpert suggested. I ran the scan on the image rather than the USB itself. Disk Drill found the vast majority of my files, pretty much everything I actually needed was there, work documents, spreadsheets, the important stuff.
There were a few things that didn't come back in great shape or showed up corrupted, but nothing I can't live without. Given the state the drive was in I was honestly just relieved it got as much as it did. I went through everything manually to check it all actually opened properly before moving on.
Then I tried to format the drive through Disk Management and sure enough Windows just threw an error, exactly like you warned might happen. So I opened Command Prompt as administrator and went through diskpart. Selected the disk, ran the clean, created a new partition, formatted it back to exFAT and it came straight back to life. The whole thing took a couple of minutes.
Done a few test transfers since and it's behaving completely normally.
Thank you so much!
Wanted to come back and give a proper update since so many of you helped me out here, feels wrong to just disappear without saying what happened!
So I went with Disk Drill in the end. First thing I did was make a drive image onto my 1TB external like DataRecoverExpert suggested. I ran the scan on the image rather than the USB itself. Disk Drill found the vast majority of my files, pretty much everything I actually needed was there, work documents, spreadsheets, the important stuff.
There were a few things that didn't come back in great shape or showed up corrupted, but nothing I can't live without. Given the state the drive was in I was honestly just relieved it got as much as it did. I went through everything manually to check it all actually opened properly before moving on.
Then I tried to format the drive through Disk Management and sure enough Windows just threw an error, exactly like you warned might happen. So I opened Command Prompt as administrator and went through diskpart. Selected the disk, ran the clean, created a new partition, formatted it back to exFAT and it came straight back to life. The whole thing took a couple of minutes.
Done a few test transfers since and it's behaving completely normally.
Thank you so much!