my computer just suddenly became really slow, here is my etrecheck.
EtreCheck version: 2.1.5 (108)
Report generated January 14, 2015 at 11:07:55 AM CST
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Hardware Information: ℹ️
MacBook Pro (13-inch, Mid 2012) (Verified)
MacBook Pro - model: MacBookPro9,2
1 2.9 GHz Intel Core i7 CPU: 2-core
8 GB RAM Upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 4000
Color LCD 1280 x 800
System Software: ℹ️
OS X 10.10.1 (14B25) - Uptime: 0:15:27
Disk Information: ℹ️
APPLE HDD TOSHIBA MK7559GSXF disk0 : (750.16 GB)
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 749.30 GB (712.93 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
MATSHITADVD-R UJ-8A8
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Inc. Apple Internal Keyboard / Trackpad
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Anywhere
Kernel Extensions: ℹ️
/Library/Application Support/Hotspot Shield
[not loaded] com.anchorfree.tun (1.1.1 - SDK 10.8) [Support]
/System/Library/Extensions
[not loaded] com.realtek.driver.RTL8192CU (1020 - SDK 10.7) [Support]
Launch Agents: ℹ️
[loaded] com.oracle.java.Java-Updater.plist [Support]
[invalid?] Wlan.Software.plist [Support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.anchorfree.ajaxserver.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
[loaded] com.oracle.java.Helper-Tool.plist [Support]
[failed] com.spotflux.Spotflux.tun.plist [Support]
[not loaded] org.eyebeam.SelfControl.plist [Support]
User Launch Agents: ℹ️
[loaded] com.google.keystone.agent.plist [Support]
[running] com.spotify.webhelper.plist [Support]
[loaded] com.valvesoftware.steamclean.plist [Support]
User Login Items: ℹ️
Steam Application (/Applications/Steam.app)
uHD-Agent UNKNOWN (missing value)
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Google Chrome UNKNOWNHidden (missing value)
Spotify UNKNOWN (missing value)
Hotspot Shield UNKNOWN (missing value)
Spotflux UNKNOWN (missing value)
Internet Plug-ins: ℹ️
FlashPlayer-10.6: Version: 16.0.0.257 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.7.3
Flash Player: Version: 16.0.0.257 - SDK 10.6 [Support]
Default Browser: Version: 600 - SDK 10.10
SharePointBrowserPlugin: Version: 14.4.5 - SDK 10.6 [Support]
Unity Web Player: Version: UnityPlayer version 4.6.0f2 - SDK 10.6 [Support]
Silverlight: Version: 5.1.30317.0 - SDK 10.6 [Support]
Mathematica: Version: 9.0.1.4092152 [Support]
JavaAppletPlugin: Version: Java 7 Update 60 Check version
User internet Plug-ins: ℹ️
BlueStacks Install Detector: Version: Unknown
3rd Party Preference Panes: ℹ️
Flash Player [Support]
Java [Support]
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
10% WindowServer
1% Google Chrome
0% SystemUIServer
0% mds
0% identityservicesd
Top Processes by Memory: ℹ️
189 MB Google Chrome
120 MB Microsoft Word
77 MB mds_stores
77 MB WindowServer
65 MB Google Chrome Helper
Virtual Memory Information: ℹ️
4.74 GB Free RAM
2.57 GB Active RAM
469 MB Inactive RAM
814 MB Wired RAM
1.42 GB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Jan 14, 2015, 10:56:21 AM /Library/Logs/DiagnosticReports/Kernel_2015-01-14-105621_[redacted].panic [Details]
Jan 14, 2015, 10:54:26 AM Self test - passed