Hi, For some reason all of my application have disappeared. Last night I was using my computer, I installed a new program (PHPStorm) used it for a while and right before shutting it down I got a system update notification so I clicked the install and shutdown option and went to bed. This morning I turned it on and I noticed that non of my app icons showed up in the dock so I rebooted my computer but nothing, again no apps, I went to the System/Applications folder and it is empty, only the mail app and the Utilities folder are there, after this I restarted/rebooted a few times but nothing. The interested thing is that I went and used the Guest account and everything is there, infact I created a new account and all of my Applications are there and function just fine but not in my user account. I know I can start with a new account but this would be a pain since I will loose all of my applications data (Quicken, Terminal Configurations etc.) and any configuration I have per application. I do have an old Time Machine back up (few months old). Any idea what could I do before I move onto a new account? FYI - I removed PHPStorm but it didn't help. Also when I'm in the account with the issue the computer runs very SLOW. System: OS X El Capitan 10.11.4 (15E65) - Time since boot: less than an hour iMac (21.5-inch, Late 2012) iMac - model: iMac13,1 1 2.9 GHz Intel Core i5 CPU: 4-core 8 GB RAM BANK 0/DIMM0 4 GB DDR3 1600 MHz BANK 1/DIMM0 4 GB DDR3 1600 MHz Wireless: en1: 802.11 a/b/g/n NVIDIA GeForce GT 650M - VRAM: 512 MB iMac 1920 x 1080 VX2450 SERIES 1920 x 1080 @ 60 Hz Thanks a lot.