Ecco il mio check:
EtreCheck version: 2.9.7 (257)
Report generated 2016-02-27 18:14:56
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Runtime 1:41
Performance: Excellent
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: No problem - just checking
Hardware Information: ⓘ
iMac (Retina 5K, 27-inch, Late 2014)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac15,1
1 4 GHz Intel Core i7 CPU: 4-core
16 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
8 GB DDR3 1600 MHz ok
BANK 1/DIMM0
8 GB DDR3 1600 MHz ok
BANK 0/DIMM1
Empty
BANK 1/DIMM1
Empty
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n/ac
Video Information: ⓘ
AMD Radeon R9 M290X - VRAM: 2048 MB
iMac 4096 x 2304
System Software: ⓘ
OS X El Capitan 10.11.3 (15D21) - Time since boot: less than an hour
Disk Information: ⓘ
APPLE SSD SD0128F disk1 : (121,33 GB) (Solid State - TRIM: Yes)
EFI (disk1s1) <not mounted> : 210 MB
Boot OS X (disk1s3) <not mounted> : 134 MB
Macintosh HD (disk2) / : 3.11 TB (2.85 TB free)
Core Storage: disk1s2 120.99 GB Online
Core Storage: disk0s2 3.00 TB Online
APPLE HDD ST3000DM001 disk0 : (3 TB) (Rotational)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk2) / : 3.11 TB (2.85 TB free)
Core Storage: disk1s2 120.99 GB Online
Core Storage: disk0s2 3.00 TB Online
USB Information: ⓘ
VIA Labs, Inc. USB3.0 Hub
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. FaceTime HD Camera (Built-in)
VIA Labs, Inc. USB2.0 Hub
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
Configuration files: ⓘ
/etc/hosts - Count: 18
Gatekeeper: ⓘ
Mac App Store and identified developers
Kernel Extensions: ⓘ
/System/Library/Extensions
[not loaded] com.paceap.kext.pacesupport.master (5.9.1 - SDK 10.6 - 2016-02-26) [Support]
/System/Library/Extensions/PACESupportFamily.kext/Contents/PlugIns
[not loaded] com.paceap.kext.pacesupport.leopard (5.9.1 - SDK 10.4 - 2013-02-01) [Support]
[not loaded] com.paceap.kext.pacesupport.panther (5.9.1 - SDK 10.-1 - 2013-02-01) [Support]
[loaded] com.paceap.kext.pacesupport.snowleopard (5.9.1 - SDK 10.6 - 2013-02-01) [Support]
[not loaded] com.paceap.kext.pacesupport.tiger (5.9.1 - SDK 10.4 - 2013-02-01) [Support]
~/Library/Services/ToastIt.service/Contents/MacOS
[not loaded] com.roxio.TDIXController (2.0 - 2015-05-14) [Support]
Startup Items: ⓘ
TuxeraNTFSUnmountHelper: Path: /Library/StartupItems/TuxeraNTFSUnmountHelper
Startup items are obsolete in OS X Yosemite
System Launch Agents: ⓘ
[not loaded] 6 Apple tasks
[loaded] 154 Apple tasks
[running] 76 Apple tasks
System Launch Daemons: ⓘ
[not loaded] 46 Apple tasks
[loaded] 155 Apple tasks
[running] 86 Apple tasks
Launch Agents: ⓘ
[not loaded] com.adobe.AAM.Updater-1.0.plist (2015-05-17) [Support]
[loaded] com.oracle.java.Java-Updater.plist (2015-07-26) [Support]
Launch Daemons: ⓘ
[loaded] PACESupport.plist (2013-02-01) [Support]
[loaded] com.adobe.SwitchBoard.plist (2015-05-16) [Support]
[loaded] com.adobe.fpsaud.plist (2016-01-29) [Support]
[loaded] com.microsoft.office.licensing.helper.plist (2015-01-16) [Support]
[loaded] com.oracle.java.Helper-Tool.plist (2015-07-26) [Support]
[running] com.paceap.eden.licensed.plist (2015-02-05) [Support]
User Launch Agents: ⓘ
[loaded] com.adobe.AAM.Updater-1.0.plist (2015-05-16) [Support]
[loaded] com.google.keystone.agent.plist (2015-12-15) [Support]
[running] com.spotify.webhelper.plist (2016-02-27) [Support]
User Login Items: ⓘ
iTunesHelper Applicazione Hidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Spotify Applicazione Hidden (/Applications/Spotify.app)
Other Apps: ⓘ
[running] com.adobe.PDApp.AAMUpdatesNotifier.992.63B2F47B-F6B9-4F94-BFCD-2E9D88C9A49D
[running] com.getdropbox.dropbox.28192
[loaded] com.spotify.client.41632
[loaded] 393 Apple tasks
[running] 190 Apple tasks
Internet Plug-ins: ⓘ
SharePointBrowserPlugin: 14.4.8 - SDK 10.6 (2015-05-14) [Support]
FlashPlayer-10.6: 20.0.0.306 - SDK 10.6 (2016-02-25) [Support]
QuickTime Plugin: 7.7.3 (2016-01-20)
Flash Player: 20.0.0.306 - SDK 10.6 (2016-02-25) [Support]
JavaAppletPlugin: Java 8 Update 66 build 17 (2015-11-28) Check version
Default Browser: 601 - SDK 10.11 (2016-01-20)
Safari Extensions: ⓘ
AdBlock (2015-09-28)
My eBay Manager (2015-05-13)
Adblock Plus (2016-02-17)
TranslateMe (2015-06-18)
Translate (2016-01-29)
3rd Party Preference Panes: ⓘ
Flash Player (2016-01-29) [Support]
Java (2015-11-28) [Support]
Tuxera NTFS (2015-11-28) [Support]
Time Machine: ⓘ
Time Machine not configured!
Top Processes by CPU: ⓘ
20% com.apple.WebKit.Networking(2)
15% com.apple.WebKit.WebContent(5)
8% kernel_task
4% WindowServer
2% fontd
Top Processes by Memory: ⓘ
1.14 GB kernel_task
803 MB Safari
721 MB com.apple.WebKit.WebContent(5)
295 MB WindowServer
295 MB mdworker(16)
Virtual Memory Information: ⓘ
10.00 GB Free RAM
5.91 GB Used RAM (1.46 GB Cached)
0 B Swap Used
Diagnostics Information: ⓘ
Feb 27, 2016, 05:44:14 PM Self test - passed