32GB USB "Suddenly" is Write Protected; Cannot Format or Delete Files?
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Member
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TenForums
Hi.
Have a look at this.
https://blogs.technet.microsoft.com/...ead-only-help/
Command to remove readonly using diskpart
Ken
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Senior Member
If the diskpart stuff doesn't work, look for special clean/reformat utilities from the UFD's maker. If those don't work, toss it out and buy another one. This is a primary symptom of a failing/failed UFD.
HTH,
--Ed--
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Administrator
As Ed posted, this is usually an indication that the USB has died when it suddenly happens for no apparent reason.
You might also take a look at the tutorial below to see if it may help if the USB is not dead.
Enable or Disable Disk Write Protection in Windows | Tutorials
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Member
@Caledon Ken
@EdTittel
@Brink
Thanks to all for suggestions. Not home at the moment but will try again tomorrow.
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Pro User
You can also try the clean cmd to see if that kicks it back into action.
Run
Diskpart
list disk
select disk x (where x is the number of the USB drive)
clean
exit
Then go to disk management to initialise it.
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Member
Bastet said:
You can also try the clean cmd to see if that kicks it back into action.
Run
Diskpart
list disk
select disk x (where x is the number of the USB drive)
clean
exit
Then go to disk management to initialise it.
Thanks for replying. I already tried that : ) See the fourth pic in my first post above. Tonight when I get home I am going to try the other suggestions.
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Pro User
phaedruspress said:
Thanks for replying. I already tried that : ) See the fourth pic in my first post above. Tonight when I get home I am going to try the other suggestions.
I think the white background to cmd prompt threw me. :)
Then it does appear the drive has failed. I hope you manage to revive it.
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Senior IT Consultant
phaedruspress said:
Thanks for replying. I already tried that : ) See the fourth pic in my first post above. Tonight when I get home I am going to try the other suggestions.
I would also like to add to the great comments above, one item...
If you are using a OEM USB OS Restore Drive, like HP or Dell, you will also find that you cannot easily reuse those 8 GB OS resident drives.
Write protected. There are Russian utilities to do this, but is it worth the time? I say no.
If your SanDisk is within warranty, it is a fairly easy process to replace:
Online RMA Request
That's all.
Last edited by Compumind; 4 Weeks Ago at 22:00.
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Pro User
The DiskPart screenshot shows the USB stick recognised as only 8GB, not 32GB. Have you checked that it's a genuine SanDisk Ultra stick and not a fake 8GB stick re-engineered to appear like the capacity is 32GB? Suddenly showing a reduced capacity and changing behaviour is also a classic symptom of a fake stick when you copy files over to it that overwhelm its 'real' capacity.
I've used tools like PassMark BurnInTest, ChipGenius, RMPrepUSB's FakeFlashTest, Flash Drive/Card Tester and H2testw to determine the 'real' tested capacity versus the 'claimed' (and entirely 'fake') capacity and whether chip controllers are branded or generic.
Have a look at this RMPrepUSB article for (much) more info about testing for fakes and download links for testers. IMO it's a very interesting read, if nothing else.
Hope this helps...
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