Some time ago I bought Raspberry PI 3, I bought also a SD Card (Transcend Premium 400x 32GB MicroSDHC), using installation guide for Mac OS I put there Raspbian Jessie. Everything was fine, I booted successfully Raspbian but OS seems to be in read only mode, anyway right now I would like to format that card which I used to install Raspbian on it. Unfortunately, I can not do it, all the time I get message like: "This card is read-only" or "This card is write protected".
Some of my friends recommended me to use SD Formatter which I used, but with no success (see screenshot below).
Basically I tried different MicroSD adapters, I tried to format this card using Mac OS, Linux, Windows.
I will really appreciate any kind of help, I'm struggling with this card for couple of days already.