Extreme SSD 55AE is hidden and cannot be reformatted - help please!


I bought my sister a 1TB SanDisk Extreme 55AE.

She uses a Windows laptop.

She managed to find the hidden file for her Apple iPhone backup that was taking up approx. 50GB of space on her laptop.

She moved that file over to her SSD to clear space.

It has now hidden the drive…

I can’t see it when it is plugged in, unless I also tick the box to View Hidden Items.

When I try to reformat the drive it says there is no drive there to reformat.

I was just going to try and clear the drive and start again… but I can’t seem to find any way to do that.

Any suggestions? Or do I need to give up…?

Screenshot 2022-06-10 135725

Hi @llaurenjj,

Please refer to the instructions mentioned in the below articles and let us know if the issue is resolved:

Title: Dashboard Support Information
link: Dashboard Support Information

Title: SSD drive is not detected

For Windows: USB Flash Drive or Memory Card Not Detected in Windows
For Mac: USB Flash Drive or Memory Card Not Detected in macOS

If further assistance is needed, please open a case with our support team at the following:

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I’ve had the same problem as above. Tried the suggestion of uninstalling of drive from device manager and it did not help. Anyone else have any luck?


Yeah… either the system controller is dead. Another thing is to check your drivers in Device Manager and try updating or install a new driver from Sandisk

 In terms of solutions, have you tried using a data recovery tool like EaseUS to retrieve any lost files? It might be worth giving it a shot if you haven’t already. EaseUS is really user-friendly and effective, so it’s definitely worth a try.

As for getting the drive to mount again, have you tried using a different cable or port? Sometimes that can make a difference. If that doesn’t work, you might want to contact customer support to see if they have any suggestions or if the drive is still under warranty.
In any case, I hope you’re able to retrieve your files and get the drive working again soon!"