I have a problem I have two 32Gb Micro Sd cards one is Sandisk Ultra the other is a black SDHC 1. They have the same problem, neither card will format, I’ve tried all the usual roots. However, my Win 11 pc can read the data on both cards and can write data to both cards. However, nothing can be deleted as all files are read only, but the read only box is blue with a dash in it not a tick. If I select the file and click on the read only box it goes clear, but if I then try and delete the file the box goes blue again with a dash in it. If I look at the cars via Diskpart it says they are FAT32 and healthy. Does anyone have a clue as to what is going on with these cards, please?
What you are seeing is a hardware-level write protection, not a Windows permission issue.
When the controller detects memory wear or internal errors, it locks the card to protect existing data. That is why you can read and even copy files, but cannot delete, format, or change attributes. The Read-only box keeps reverting because Windows cannot override hardware protection. Diskpart still shows the card as healthy because the file system is readable. There is no software fix for this. Formatting, diskpart, or registry changes will not work. Copy any important data immediately and replace the cards.
