My sandisk ultra usb 3.0 is write protected what to do?

A $500 contribution to the legal action case would be appreciated jahnsrichardd.

Ok I found the problem and fixed it. I found that when I plug in the USB through the device, it adds another free disk, so you can move the slot to switch to disk 3 (before it was working on disk 2). You can erase and format as usual.


i dont have the delete all partitions option

You have the Wipe Disk option which I can assure you deletes all of them.

I forgot my password and needed to ā€˜factory reset’ my SanDisk SSD. I could not see the option to do this, and I tried what many on this forum did to no avail.
Here’s a step-by-step guide to resetting your drive:
Plug the drive in
Make sure you have downloaded the SanDisk Security app.
Search the app and right-click on it.
Select ā€˜Run as administrator’.
Enter the password incorrectly five times.
You will then be allowed to erase the drive and start over again.
Do not use SanDisk Unlock - you will not have the option to erase the drive
I hope this is helpful
Note: if you have forgotten your password, you cannot recover your files. I recommend setting a password hint.

1 Like

After reading this forum I just destroyed my ā€˜write protected’ USB.
I will be boycotting Sandisk products till 2030.
Life’s too short to waste time on companies that stuff up as badly as this.

May I ask a silly question - have you seen the physical switch on a USB flash drive? I tried a number of things and finally realized that the physical switch was not unlocked, causing the disk is write-protected on all my computers.
Sometimes, when the USB drive’s physical switch is locked, the device becomes write-protected on all PCs and devices you connect. You should locate and turn the physical switch from ON to OFF on your USB.
If the data on your USB flash drive is not important or you have a backup, you can format the drive, which could disable the USB drive’s write protection.

A write-protected SanDisk Ultra USB 3.0 essentially transforms your convenient little drive into a ā€œread-only museum exhibitā€ for your files. Oh no, that’s annoying. But don’t worry, it can usually be fixed.

1. Check Physical Lock Switch

  • Some USB drives have a tiny switch on the casing. If yours has one, make sure it’s set to the ā€œunlockā€ position.

2. Remove Write Protection via Windows Command Prompt

  • Plug in your USB.
  • Press Win + R, type diskpart, and press Enter.

Type:

list disk
select disk X (replace X with your USB’s number)
attributes disk clear readonly
exit

  • Unplug and reinsert your drive.

If this step does not work, users need to use the data recovery tool that can help in this situation.

Try format your pendrive with this tool. It may solve the problem.

You have to use any more third-party app from the appstore.

If a SanDisk Ultra USB suddenly becomes write-protected and even DiskPart/Registry/3rd-party tools can’t flip it back… that’s usually not Windows being annoying.

Most of the time it means the USB drive controller has forced ā€œread-only modeā€ because the flash memory is failing (it does this to stop total data loss). So you can copy files off it, but you can’t write/format anymore.

What to do (quick + real steps)

1) Try a different port + different PC

  • Preferably a USB 2.0 port (yes, slower but sometimes more stable).

  • If it’s still write-protected everywhere → it’s the drive, not your system.

2) Save your files immediately

  • Copy everything important off it now (before it fully dies).

3) Try a full wipe (only if you don’t need the data)
Sometimes it works if the drive isn’t actually dying yet:

Open CMD as Admin → DiskPart:

diskpart
list disk
select disk X   (your USB)
clean
create partition primary
format fs=exfat quick
assign
exit

If it fails with ā€œwrite protectedā€ again → hardware lock.

4) Check if it has a physical lock switch
Most SanDisk USB sticks don’t, but if yours is in an adapter or weird casing, double-check.

5) Final answer: replace/RMA it
If it’s new and stuck read-only, it’s basically faulty out of the box.
You can’t ā€œsoftware-fixā€ a drive that’s locked itself into read-only at hardware level.

So yeah… backup what you can, then return it / warranty claim while you still have time