Josie2 Posted December 12, 2019 Share Posted December 12, 2019 Does the free version of Recuva work with USBs? Link to comment Share on other sites More sharing options...
Moderators Nergal Posted December 12, 2019 Moderators Share Posted December 12, 2019 (edited) Usb flash memory/SSD or usb hard drive? Generally, recuva will work on both; however, because of the way flash memory and SSDs work, recovery (from any program) can be hit-or-miss. Edited December 12, 2019 by Nergal ADVICE FOR USING CCleaner'S REGISTRY INTEGRITY SECTION DON'T JUST CLEAN EVERYTHING THAT'S CHECKED OFF. Do your Registry Cleaning in small bits (at the very least Check-mark by Check-mark) ALWAYS BACKUP THE ENTRY, YOU NEVER KNOW WHAT YOU'LL BREAK IF YOU DON'T. Support at https://support.ccleaner.com/s/?language=en_US Pro users file a PRIORITY SUPPORT via email support@ccleaner.com Link to comment Share on other sites More sharing options...
Josie2 Posted December 12, 2019 Author Share Posted December 12, 2019 error message is: unable to determine file system type - the other free "download" recovery programs says I have a lost partition Link to comment Share on other sites More sharing options...
Moderators Andavari Posted December 12, 2019 Moderators Share Posted December 12, 2019 It will work but needs a valid partition and file system to do so at least in Windows. Link to comment Share on other sites More sharing options...
Josie2 Posted December 12, 2019 Author Share Posted December 12, 2019 So Recuva wont work then on a flash memory USB Link to comment Share on other sites More sharing options...
Moderators Augeas Posted December 12, 2019 Moderators Share Posted December 12, 2019 Yes, Recuva works on flash drives. But the question is does Recuva work with USB attached devices? In my experience Recuva works fine in all functions with flash drives directly plugged into a USB port, and with HDD's accessed via a USB attached caddy. So yes, Recuva works with USB attached drives. But from your second post I don't think that that is the problem, the device seems corrupted, which Recuva won't cure. Link to comment Share on other sites More sharing options...
Josie2 Posted December 13, 2019 Author Share Posted December 13, 2019 I see - I have used EaseUS and Stellar - thy are ableto get to thefiles on the USB. However it is very expensive to use either one of those, especially as it is a once-off and I don't think I need the year's subscription Link to comment Share on other sites More sharing options...
Moderators Andavari Posted December 13, 2019 Moderators Share Posted December 13, 2019 Some recovery tools require a valid file system to recover files especially the freeware variety which is why people not wanting to spend 1 cent on such a tool may do a quick format on a drive/disk to allow such a tool to function - but there's always the risk of destroying the files you need to recover doing that. Whereas other recovery tools may cost money (sometimes allot of money) that can recover from drives/disks that are deemed as unformatted in Windows. Link to comment Share on other sites More sharing options...
Josie2 Posted December 13, 2019 Author Share Posted December 13, 2019 Thank you all - it seems my choices are pay for either EaseUS or Stellar as they start the process and obviously get past the lost partition. I am not sure how much of my USB would be recoverable and pay about $100. or format the disk and see if Recuva can recover the deleted files - but there is a limit of ?? (MB) - how many MB Recuva will recover for free? Link to comment Share on other sites More sharing options...
Moderators Augeas Posted December 13, 2019 Moderators Share Posted December 13, 2019 There's no data limit on Recuva free or paid. There are still some unresolved questions, is this a flash drive or an USB attached SSD? What version of Windows are you on? If it's an SSD and you are on a late version of Widows then I believe TRIM is, or can be, propogated across the USB connection, and a format with TRIM will wipe the device completely. But don't ask me to confirm this, as I can't. If it's a flash drive (i.e. a flash device plugged directly into the USB port) I don't think that TRIM will be in effect. But again I can't confirm that. Link to comment Share on other sites More sharing options...
Moderators Andavari Posted December 13, 2019 Moderators Share Posted December 13, 2019 3 hours ago, Augeas said: If it's a flash drive (i.e. a flash device plugged directly into the USB port) I don't think that TRIM will be in effect. But again I can't confirm that. USB flash drives ("UFD") would have to be formatted as NTFS for Trim to work however it won't work, and NTFS is not a typical file system for someone to be using on a UFD unless the capacity was over 32GB. This is what I get when invoking Trim via a command prompt on one formatted as NTFS, i.e.; Win10 or the flash controller itself doesn't allow it: "The operation requested is not supported by the hardware backing the volume. (0x8900002A)" But then on the other hand there are USB solid state flash drives, I've seen them as MLC and TLC, and those I'd imagine should support Trim since they're essentially just an SSD anyways, but those would be rare for most people to own due to the cost being significantly higher than a standard 2.5in SATA SSD of the same capacity. Link to comment Share on other sites More sharing options...
Moderators Augeas Posted December 16, 2019 Moderators Share Posted December 16, 2019 I was thinking more about whether the USB software supported the TRIM command. TRIM is a SATA command, and USB protocal isn't. I have read that later USB software can support TRIM, but it's all a bit hazy. TRIM is becoming less relevant now, as the trend in SSDs is towards foreground garbage collection. Link to comment Share on other sites More sharing options...
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