Memory Card name suddenly changed to ^M

[Julienne1]

Hi. I suddenly saw that my memory card name has changed to ^M. This is without me doing anything at all. I did not do factory reset yet or any alterations to my SD card. Is this a virus? How do i change back the name of my sd card? At first when i noticed it, the apps stored in the card couldnt be detected. I restarted my phone and all is okay again but the name is still ^M. 

Im using Xperia XA.

[SelTheDon]

Mine too, except for when I connect my phone to a PC it recognises my memory card as M^M^M^M^M^M^M^M^M^M^M^M