I upgraded to El Capitan about ten days ago; everything was fine until today. It took about 20-30 mins to start up; even then, I got the beachball every time I tried to do anything. I checked Activity Monitor - no CPU hogs. I ran Disk Utility to fix permissions - no change. I cleared caches, checked extensions, checked log-in items - no change. I started in Safe Mode - exactly the same problem. Applications take ages to open, and the beachball comes up whenever I try to do anything.
I searched for similar problems but didn't find much that could help, since I know very little about computers ... can someone help me find a way to diagnosis and/or fix this problem?
I searched for similar problems but didn't find much that could help, since I know very little about computers ... can someone help me find a way to diagnosis and/or fix this problem?