Here is my report as requested by you. I went to my Activity Monitor but didn't understand much.
EtreCheck version: 2.9.11 (264) Report generated 2016-04-20 18:31:43 Download EtreCheck from https://etrecheck.com Runtime 2:28 Performance: Excellent Click the [Support] links for help with non-Apple products. Click the [Details] links for more information about that line. Click the [Remove] links to remove adware. Problem: No problem - just checking Hardware Information: ⓘ MacBook Air (13-inch, Mid 2013) [Technical Specifications] - [User Guide] - [Warranty & Service] MacBook Air - model: MacBookAir6,2 1 1.3 GHz Intel Core i5 CPU: 2-core 4 GB RAM Not upgradeable BANK 0/DIMM0 2 GB DDR3 1600 MHz ok BANK 1/DIMM0 2 GB DDR3 1600 MHz ok Bluetooth: Good - Handoff/Airdrop2 supported Wireless: en0: 802.11 a/b/g/n/ac Battery: Health = Normal - Cycle count = 711 Video Information: ⓘ Intel HD Graphics 5000 Color LCD 1440 x 900 System Software: ⓘ OS X Yosemite 10.10.4 (14E46) - Time since boot: about 2 days Disk Information: ⓘ APPLE SSD SD0128F disk0 : (121.33 GB) (Solid State - TRIM: Yes) EFI (disk0s1) <not mounted> : 210 MB Macintosh HD (disk0s2) / : 120.47 GB (38.98 GB free) Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB USB Information: ⓘ Apple Internal Memory Card Reader Apple Inc. BRCM20702 Hub Apple Inc. Bluetooth USB Host Controller Thunderbolt Information: ⓘ Apple Inc. thunderbolt_bus Gatekeeper: ⓘ Mac App Store and identified developers Adware: ⓘ ~/Library/LaunchAgents/com.jdibackup.ZipCloud.autostart.plist ~/Library/LaunchAgents/com.jdibackup.ZipCloud.notify.plist 2 adware files found. [Remove] Kernel Extensions: ⓘ /Library/Extensions [loaded] com.symantec.nfm.kext (7.0.2 - SDK 10.9 - 2016-01-21) [Support] /System/Library/Extensions [loaded] com.symantec.internetSecurity.kext (7.0.1 - SDK 10.8 - 2016-03-25) [Support] [loaded] com.symantec.ips.kext (7.0.1 - SDK 10.8 - 2016-03-25) [Support] System Launch Agents: ⓘ [failed] com.apple.bird.plist [not loaded] 5 Apple tasks [loaded] 134 Apple tasks [running] 49 Apple tasks [killed] 22 Apple tasks 22 processes killed due to insufficient RAM System Launch Daemons: ⓘ [not loaded] 47 Apple tasks [loaded] 132 Apple tasks [running] 68 Apple tasks [killed] 15 Apple tasks 15 processes killed due to insufficient RAM Launch Agents: ⓘ [failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a...plist (2015-12-10) [Support] [failed] com.google.keystone.agent.plist (2016-03-02) [Support] [failed] com.symantec.errorreporter-periodicagent.NFM.plist (2015-11-11) [Support] [running] com.symantec.uiagent.application.NFM.plist (2015-11-03) [Support] Launch Daemons: ⓘ [loaded] com.adobe.ARMDC.Communicator.plist (2015-12-10) [Support] [loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (2015-12-10) [Support] [failed] com.adobe.fpsaud.plist (2016-04-04) [Support] [loaded] com.google.keystone.daemon.plist (2016-03-02) [Support] [loaded] com.symantec.SymLUHelper.NFM.plist (2015-10-30) [Support] [loaded] com.symantec.UninstallerToolHelper.NFM.plist (2015-10-30) [Support] [running] com.symantec.deepsight-extractor.NFM.plist (2015-10-30) [Support] [failed] com.symantec.errorreporter-periodic.NFM.plist (2015-11-11) [Support] [failed] com.symantec.liveupdate.daemon.NFM.plist (2015-10-30) [Support] [running] com.symantec.nfm.wps.plist (2015-10-30) [Support] [running] com.symantec.sharedsettings.NFM.plist (2015-10-30) [Support] [running] com.symantec.symdaemon.NFM.plist (2015-10-30) [Support] User Launch Agents: ⓘ [running] com.apple.FolderActions.enabled.plist [loaded] com.apple.FolderActions.folders.plist [failed] com.jdibackup.ZipCloud.autostart.plist (2015-07-04) Adware! [Remove] [failed] com.jdibackup.ZipCloud.notify.plist (2015-07-04) Adware! [Remove] Other Apps: ⓘ [loaded] com.trendmicro.ATLoginItemHelper [loaded] com.trendmicro.ATLoginItemHelper-Preview [running] com.trendmicro.DrCleanerPreview.508960 [loaded] 359 Apple tasks [running] 136 Apple tasks [killed] 48 Apple tasks Internet Plug-ins: ⓘ WidevineMediaOptimizer: 6.0.0.12757 - SDK 10.7 (2014-06-09) [Support] FlashPlayer-10.6: 21.0.0.213 - SDK 10.6 (2016-04-14) [Support] Default Browser: 600 - SDK 10.10 (2015-07-03) AdobePDFViewerNPAPI: 15.009.20069 - SDK 10.8 (2015-09-30) [Support] AdobePDFViewer: 15.009.20069 - SDK 10.8 (2015-09-30) [Support] Flash Player: 21.0.0.213 - SDK 10.6 (2016-04-14) [Support] o1dbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-16) [Support] QuickTime Plugin: 7.7.3 (2016-01-08) googletalkbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-11) [Support] Silverlight: 5.1.40416.0 - SDK 10.6 (2015-05-30) [Support] DirectorShockwave: 12.1.3r153 - SDK 10.6 (2014-06-24) [Support] User internet Plug-ins: ⓘ NPRoblox: 1, 2, 8, 25 - SDK 10.9 (2014-08-08) [Support] Picasa: 1.0 - SDK 10.6 (2014-08-08) [Support] DISH Anywhere Player: ECHO.2.29.3 (2016-01-22) [Support] Safari Extensions: ⓘ Norton Security - Symantec Corporation - http://www.norton.com/mac (2016-02-11) 1-ClickWeather - TWCi - http://www.weather.com/ (2014-09-25) Grammarly Spell Checker & Grammar Checker - Grammarly - https://www.grammarly.com (2016-04-14) SafariRestore - SweetP Productions - http://sweetpproductions.com/extensions/extensions.htm (2015-06-11) SunChica - Cecilia Sanchez - http://www.yahoo.com (2015-07-02) ResizeMe - Aaron Holland - http://aaronholla.webs.com (2014-09-25) GMail Counter - Elia Cereda - http://elix14.altervista.org/ (2014-09-25) YoutubeWide - Pedrocc - http://www.pedrocc.com/safari (2014-09-25) Adblock Plus - Eyeo GmbH - https://adblockplus.org/ (2016-03-10) Awesome Screenshot - Diigo - http://www.diigo.com/ (2015-09-18) 3rd Party Preference Panes: ⓘ Flash Player (2016-04-04) [Support] Time Machine: ⓘ Time Machine not configured! Top Processes by CPU: ⓘ 83% SymDaemon 19% kernel_task 10% WindowServer 3% fontd 2% DrCleanerPreview Top Processes by Memory: ⓘ 827 MB com.apple.WebKit.WebContent(12) 554 MB kernel_task 193 MB Safari 127 MB SymDaemon 82 MB mdworker(11) Virtual Memory Information: ⓘ 28 MB Free RAM 3.97 GB Used RAM (387 MB Cached) 1.23 GB Swap Used Diagnostics Information: ⓘ Apr 18, 2016, 11:03:16 AM Self test - passed Apr 17, 2016, 08:20:54 PM /Library/Logs/DiagnosticReports/iCloudAccountsMigrator_2016-04-17-202054_[redac ted].crash /System/Library/PrivateFrameworks/AOSAccounts.framework/Versions/A/Resources/iC loudAccountsMigrator
Ms Gams