It wouldn't work for me but after it crashed and I safe booted it this report came up
Anonymous UUID: 4D9D85F7-B40A-2261-71F7-D0CC4821DBB8
Thu May 5 22:52:01 2016
*** Panic Report ***
panic(cpu 0 caller 0xffffff80276f459a): "Kernel stack memory corruption detected"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.40.184/libkern/sta ck_protector.c:37
Backtrace (CPU 0), Frame : Return Address
0xffffff92119abce0 : 0xffffff80276dab12
0xffffff92119abd60 : 0xffffff80276f459a
0xffffff92119abdf0 : 0xffffff<0276f0def
0xffffff92119abe30 : 0xffffff8027b8c2a3
0xffffff92119abea0 : 0xffffff8027bc88a9
0xffffff92119abf60 : 0xffffff8027c27fa1
0xffffff92119abfb0 : 0xffffff80277eca76
BSD process name corresponding to current thread: avguard-ondemand
Mac OS version:
15E6=
Kernel version:
Darwin Kernel Version 15.4.0: Fri Feb 26 22:08:05 PST 2016; root:xnu-3248.40.184~3/RELEASE_X86_64
Kernel UUID: 4E7B4496-0B81-34E9-97AF-F316103B0839
Kernel slide: 0x0000000027400000
Kernel text base: 0xffffff8027600000
__HIB text base: 0xffffff8027500000
System model name: MacBookPro8,1 (Mac-94245B3640C91C81)
System uptime in nanoseconds: 71946207035
last noaded kext at 49752167135: com.apple.driver.AudioAUUC 1.70 (addr 0xffffff7fa99bb000, size 32768)
loaded kexts:
com.avira.kext.FileAccessControl 1.2.2
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AGPM 110.21.18
com.apple.driver.AppleTyMCEDriver 1.0.2d2
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleHDAHardwareConfigDriver 274.7
com.apple.driver.AppleHDA 274.7
com.apple.driver.ApplePolicyControl 3.12 6
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.pmtelametry 1
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 4.4.4f4
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleMikeyDriver 274.7
com.apple.driver.AppleBacklight 170.8.9
com.apple.driver.AppleThunderjoltIP 3.0.8
com.apple.driver.AppleIntelHD3000Graphics 10.0.0
com.apple.driver.AppleLPC 3.1
com.apple.driver.AppleHV 1
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.4f4
com.apple.driver.AppleFIVRDriver 4.1.0
com.apple.driver.AppleMCCSContzol 1.2.13
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.AppleSMCLMU 208
com.apple.driver.ACPI_SMC_Pla|formPlugin 1.0.0
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.8
com.apple.driver.AppleMu|Control
Model: MacBookPro8,1, BootROM MBP81.0047.B2C, 2 processors, Intel Core i5, 2.3 GHz, 16 GB, SMC 1.68f99
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1333 MHz, 0x859B, 0x435438473353313333394D2E4D3136464544
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1333 MHz, 0x859B, 0x435438473353313333394D2E4D3136464544
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.24)
Bluetooth: Version 4.4.4f4 17685, 3 services, 27 devices, 0 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: TOSHIBA MK3265GSXF, 320.07 GB
Serial ATA Device: MATSHITADVD-R UJ-8A8
USB Device: USB 2.0 Bus
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: Apple Internal Keyboard / Trackpad
USB Device: BRCM2070 Hub
USB Device: Bluetooth USB Host Controller
USB Device: USB 2.0 Bus
USB Device: Hub
USB Device: IR Receiver
Thunderbolt Bus: MacBook Pro, Apple Inc., 22.1