Computer froze and fan started going faster by the second. What could've happened?

I was using my computer (MacBook Pro Retina 13") and suddenly it froze and the fan speed was going higher by the second. I had to switch off the compute before something serious happens.

I did the EtreCheck after reading some of the responses. Hope this helps in figuring out what is going wrong. Also how to minimise the CPU usage and reduce the RAM as well?

Problem description:

My computer froze and the fan (I guess it was the fan) starting blowing harder and harder and harder by the second. I got worried that It might blow up or burn up so I switched it off immediately. Most of my memory is used up by Kernel_task and I am not sure what that is!

EtreCheck version: 2.1.1 (104)

Report generated December 9, 2014 at 11:55:35 AM EST

Hardware Information: ℹ️

MacBook Pro (Retina, 13-inch, Late 2013) (Verified)

MacBook Pro - model: MacBookPro11,1

1 2.4 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

Video Information: ℹ️

Intel Iris -

Color LCD spdisplays_2560x1600Retina

System Software: ℹ️

OS X 10.10.1 (14B25) - Uptime: 0:10:51

Disk Information: ℹ️

APPLE SSD SD0128F disk0 : (121.33 GB)

S.M.A.R.T. Status: Verified

EFI (disk0s1) <not mounted> : 210 MB

Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB

Macintosh HD (disk1) / : 120.11 GB (19.59 GB free)

Encrypted AES-XTS Unlocked

Core Storage: disk0s2 120.47 GB Online

USB Information: ℹ️

Apple Internal Memory Card Reader

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. Apple Internal Keyboard / Trackpad

Thunderbolt Information: ℹ️

Apple Inc. thunderbolt_bus

Gatekeeper: ℹ️

Mac App Store and identified developers

Kernel Extensions: ℹ️

/Applications/ExpressVPN.app

[not loaded] expressvpn.tap (1.0) [Support]

[not loaded] expressvpn.tun (1.0) [Support]

/Applications/Parallels Desktop.app

[not loaded] com.parallels.kext.hidhook (9.0 23136.932290) [Support]

[not loaded] com.parallels.kext.hypervisor (9.0 23136.932290) [Support]

[not loaded] com.parallels.kext.netbridge (9.0 23136.932290) [Support]

[not loaded] com.parallels.kext.usbconnect (9.0 23136.932290) [Support]

[not loaded] com.parallels.kext.vnic (9.0 23136.932290) [Support]

/Applications/VMware View Client.app

[not loaded] com.vmware.kext.vmioplug.10.3.20 (10.3.20) [Support]

/System/Library/Extensions

[not loaded] com.nike.sportwatch (1.0.0) [Support]

Launch Agents: ℹ️

[loaded] com.google.keystone.agent.plist [Support]

[invalid?] com.nike.nikeplusconnect.plist [Support]

[loaded] com.oracle.java.Java-Updater.plist [Support]

Launch Daemons: ℹ️

[loaded] com.adobe.fpsaud.plist [Support]

[loaded] com.google.keystone.daemon.plist [Support]

[loaded] com.microsoft.office.licensing.helper.plist [Support]

[loaded] com.oracle.java.Helper-Tool.plist [Support]

[loaded] com.oracle.java.JavaUpdateHelper.plist [Support]

[loaded] jp.co.canon.MasterInstaller.plist [Support]

User Launch Agents: ℹ️

[loaded] com.adobe.ARM.[...].plist [Support]

[running] com.spotify.webhelper.plist [Support]

User Login Items: ℹ️

Garmin Express Service UNKNOWN (missing value)

iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Dropbox Application (/Applications/Dropbox.app)

Google Drive Application (/Applications/Google Drive.app)

Internet Plug-ins: ℹ️

FlashPlayer-10.6: Version: 15.0.0.239 - SDK 10.6 [Support]

Default Browser: Version: 600 - SDK 10.10

AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 [Support]

AdobePDFViewer: Version: 11.0.09 - SDK 10.6 [Support]

Flash Player: Version: 15.0.0.239 - SDK 10.6 Mismatch! Adobe recommends 16.0.0.235

o1dbrowserplugin: Version: 5.38.6.0 - SDK 10.8 [Support]

QuickTime Plugin: Version: 7.7.3

SharePointBrowserPlugin: Version: 14.4.6 - SDK 10.6 [Support]

googletalkbrowserplugin: Version: 5.38.6.0 - SDK 10.8 [Support]

Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Support]

JavaAppletPlugin: Version: Java 7 Update 71 Check version

User internet Plug-ins: ℹ️

Google Earth Web Plug-in: Version: 7.1 [Support]

Safari Extensions: ℹ️

OpenIE

3rd Party Preference Panes: ℹ️

Flash Player [Support]

Java [Support]

Time Machine: ℹ️

Skip System Files: NO

Auto backup: YES

Volumes being backed up:

Macintosh HD: Disk size: 120.11 GB Disk used: 100.52 GB

Destinations:

FreeAgent Drive [Local]

Total size: 249.72 GB

Total number of backups: 3

Oldest backup: 2014-10-09 16:35:45 +0000

Last backup: 2014-11-13 01:12:02 +0000

Size of backup disk: Too small

Backup size 249.72 GB < (Disk used 100.52 GB X 3)

Top Processes by CPU: ℹ️

10% Dropbox

9% WindowServer

2% Safari

1% coreaudiod

1% Activity Monitor

Top Processes by Memory: ℹ️

271 MB Safari

120 MB Dropbox

120 MB WindowServer

99 MB Dock

86 MB Google Drive

Virtual Memory Information: ℹ️

87 MB Free RAM

1.66 GB Active RAM

1.45 GB Inactive RAM

835 MB Wired RAM

8.46 GB Page-ins

17 MB Page-outs

Diagnostics Information: ℹ️

Dec 9, 2014, 11:48:14 AM Dropbox_2014-12-09-114814_Abdulrahmans-MacBook-Pro.cpu_resource.diag [Details]

Dec 9, 2014, 11:48:06 AM Skype_2014-12-09-114806_Abdulrahmans-MacBook-Pro.hang

Dec 9, 2014, 11:45:18 AM Self test - passed

Dec 9, 2014, 10:33:03 AM cloudd_2014-12-09-103303_Abdulrahmans-MacBook-Pro.crash

Dec 7, 2014, 04:35:23 PM cloudd_2014-12-07-163523_Abdulrahmans-MacBook-Pro.crash

Dec 7, 2014, 03:29:54 PM StataSE_2014-12-07-152954_Abdulrahmans-MacBook-Pro.hang