I'm looking to find the cause why I'm getting the spinning beachball on my MBPro all the time since this afternoon. I can work for like 30 seconds and get a spinning beachball for like 30 seconds. During that time OSX freezes. I can move the mouse cursor but click nothing. When I write something on the keyboard it is processed after the freeze.
Here's what else changed:
- booting takes like 10 minutes (compared to 20 seconds normally)
- Stop sign when power up the Mac
- can't launch in safe mode
- no start sound
How can I investigate the issue? Everything seems to work but it is awfully slow... I've got a 480GB SSD and a 750GB HDD (in the CD Mount). The MacBook has 16GB of RAM and is running the Gold Master of El Captain.