It won't let me install/download anything and external USB drives are not being mounted (the USB ports work though) there are a few pictures to show this. The CD/DVD drive on the side is not working either.
I don't know what happened or what I have to do.
The USB's I tried to "mount" in Disk Utility but it said that it cant be mounted, so I tried to format the external drive into other formats too but this didn't fix anything.
The most concerning to me it the problem with the installing of software, which doesn't work (both from the internet and from the mac app store) so what do I do here? I am sure it has nothing to do with the settings and the system and admin (me) is permitted to read and write the internal HDD.
Please help me out here!!!
Thanks so much in advance..