Here's my Etrecheck report:
Problem description:
System regularly freezes, crashes and reboots
EtreCheck version: 2.1.5 (108)
Report generated 18 December 2014 10:06:35 GMT
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Hardware Information: ℹ️
MacBook Pro (Retina, Mid 2012) (Verified)
MacBook Pro - model: MacBookPro10,1
1 2.6 GHz Intel Core i7 CPU: 4-core
8 GB RAM Not 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: en0: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 4000
NVIDIA GeForce GT 650M - VRAM: 1024 MB
Thunderbolt Display 2560 x 1440
System Software: ℹ️
OS X 10.10.2 (14C81f) - Uptime: 1:23:45
Disk Information: ℹ️
APPLE SSD SM256E disk0 : (251 GB)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Internal SSD (disk1) / : 249.78 GB (211.16 GB free)
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 250.14 GB Online
SanDisk SSD U100 128GB disk2 : (128.04 GB)
EFI (disk2s1) <not mounted> : 210 MB
External SSD (disk2s2) /Volumes/External SSD : 127.69 GB (34.18 GB free)
USB Information: ℹ️
Seagate Backup+ SL 1 TB
EFI (disk3s1) <not mounted> : 210 MB
External HD 1 (disk3s2) /Volumes/External HD 1 : 999.86 GB (403.85 GB free)
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Canon CanoScan
Samsung Electronics Co., Ltd. ML-1860 Series
Apple Inc. FaceTime HD Camera (Display)
Apple Inc. Apple Thunderbolt Display
Apple Inc. Display Audio
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt Display
LaCie Rugged mini
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/Parallels Desktop.app
[not loaded] com.parallels.kext.hypervisor (10.1.1 28614 - SDK 10.7) [Support]
[not loaded] com.parallels.kext.netbridge (10.1.1 28614 - SDK 10.7) [Support]
[not loaded] com.parallels.kext.usbconnect (10.1.1 28614 - SDK 10.7) [Support]
[not loaded] com.parallels.kext.vnic (10.1.1 28614 - SDK 10.7) [Support]
Launch Agents: ℹ️
[running] com.webex.pluginagent.plist [Support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
User Login Items: ℹ️
gfxCardStatus Application (/Applications/gfxCardStatus.app)
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Fantastical Application (/Applications/Fantastical.app)
Internet Plug-ins: ℹ️
MeetingJoinPlugin: Version: Unknown - SDK 10.6 [Support]
FlashPlayer-10.6: Version: 16.0.0.235 - SDK 10.6 [Support]
Flash Player: Version: 16.0.0.235 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Support]
Default Browser: Version: 600 - SDK 10.10
User internet Plug-ins: ℹ️
WebEx64: Version: 1.0 - SDK 10.6 [Support]
Safari Extensions: ℹ️
Open in Internet Explorer [Installed]
3rd Party Preference Panes: ℹ️
Flash Player [Support]
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
4% WindowServer
2% cloudd
1% fontd
0% Safari
0% networkd
Top Processes by Memory: ℹ️
155 MB Safari
137 MB mds_stores
137 MB Mail
120 MB ocspd
112 MB Finder
Virtual Memory Information: ℹ️
3.46 GB Free RAM
3.03 GB Active RAM
1.07 GB Inactive RAM
1.02 GB Wired RAM
1.61 GB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Dec 18, 2014, 08:43:25 AM Self test - passed
Dec 16, 2014, 04:44:15 PM /Library/Logs/DiagnosticReports/lsregister_2014-12-16-164415_[redacted].crash