Why my sd card doesn't let me write on it utill I restart frequently ?

[Android Central Question]

My sd doesn't allow me to delete , copy , or paste , take pics or screenshots..
I just can't add anything to my sd card.. but i can read sd card files only ( watch movies , listen music ) and when i restart my phone it's fix for some time ( less than 1 day ) and again same problem . I thought it was my card's fault and bought a new one .. and again same problem . .

 

[B. Diddy]

Welcome to Android Central! Which phone? Does this happen in Safe Mode as well?