My Mac freezes, turns off and restarts.
My Mac keeps turning off. It freezes, shuts down and restarts. It's happening quite frequently, everyday, and I'm really worried now. It happens at least a few times everyday but it hasn't been as frequent as it is now. I'm not sure what it could be. A virus? I have a version of MacKeeper. Isn't that supposed to prevent viruses from infiltrating into my system? I'm not tech person so I'm really lost here. Any help would be appreciated. My MacBook Pro is from 2010. Thanks.
There may be other issues, but you should start by getting rid of "MacKeeper."
"MacKeeper" is a scam with only one useful feature: it deletes itself.
First, back up all data.
Note: These instructions apply to the version of the product that I downloaded and tested in early 2012. I can't be sure that they apply to other versions.
If you have incompletely removed MacKeeper—for example, by dragging the application to the Trash and immediately emptying—then you'll have to reinstall it and start over.
IMPORTANT: "MacKeeper" has what the developer calls an “encryption” feature. In my tests, I didn't try to verify what this feature really does. If you used it to “encrypt” any of your files, “decrypt” them before you uninstall, or (preferably) restore the files from backups made before they were “encrypted.” As the developer is not trustworthy, you should assume that the "decrypted" files are corrupt unless proven otherwise.
In the Finder, select
Go ▹ Applications
from the menu bar, or press the key combination shift-command-A. The "MacKeeper" application is in the folder that opens. Quit it if it's running, then drag it to the Trash. You'll be prompted for your login password. Click the Uninstall MacKeeper button in the dialog that appears. All the other functional components of the software will be deleted. Restart the computer and empty the Trash.
☞ Quit MacKeeper before dragging it to the Trash.
☞ Let MacKeeper delete its other components before you empty the Trash.
☞ Don't try to drag the MacKeeper Dock icon to the Trash.
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Interval Since Last Panic Report: 223748 sec
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Anonymous UUID: 4BFE30DA-BB47-97F2-BCA7-E31FAAE8DF9A
Wed Oct 2 17:35:28 2013
panic(cpu 2 caller 0xffffff802b2fa591): "hfs_UNswap_BTNode: invalid backward link (0x00013ad5 == 0x00013ad5)\n"@/SourceCache/xnu/xnu-2050.48.11/bsd/hfs/hfs_endian.c:297
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0xffffff811ce53320 : 0xffffff802b2fa591
0xffffff811ce53370 : 0xffffff802b2ef474
0xffffff811ce533b0 : 0xffffff802b12160a
0xffffff811ce534a0 : 0xffffff802b11e5b3
0xffffff811ce53550 : 0xffffff802b120c7f
0xffffff811ce535a0 : 0xffffff802b31909f
0xffffff811ce535d0 : 0xffffff802b31d1e6
0xffffff811ce53640 : 0xffffff802b304138
0xffffff811ce536e0 : 0xffffff802b1190e4
0xffffff811ce53750 : 0xffffff802b351c19
0xffffff811ce53f50 : 0xffffff802b3e97ba
0xffffff811ce53fb0 : 0xffffff802b0cf453
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Kernel UUID: B1B58405-A2B2-3C44-B25D-495053D52AB5
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com.apple.nke.asp_tcp 7.1.0
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com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 34
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.3.5
com.apple.driver.AppleUSBHub 623.4.4
com.apple.driver.AppleSDXC 1.4.3
com.apple.driver.AppleAHCIPort 2.6.6
com.apple.driver.AppleUSBEHCI 621.4.6
com.apple.driver.AppleUSBXHCI 630.4.5
com.apple.driver.AppleACPIButtons 1.8
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.8
com.apple.driver.AppleAPIC 1.7
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com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2.1
com.apple.driver.AppleIntelCPUPowerManagement 214.0.0
com.apple.security.SecureRemotePassword 1.0
com.apple.iokit.IOSurface 86.0.4
com.apple.iokit.IOSerialFamily 10.0.6
com.apple.nvidia.gk100hal 8.1.6
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com.apple.iokit.IOAudioFamily 1.9.2fc7
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com.apple.iokit.IOEthernetAVBController 1.0.2b1
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com.apple.driver.AppleEFIRuntime 2.0
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com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 220.3
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.DiskImages 345
com.apple.iokit.IOStorageFamily 1.8
com.apple.driver.AppleKeyStore 28.21
com.apple.driver.AppleACPIPlatform 1.8
com.apple.iokit.IOPCIFamily 2.8
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
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Graphics: NVIDIA GeForce GTX 675MX, NVIDIA GeForce GTX 675MX, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3431554638424455352D474E2D4620
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3431554638424455352D474E2D4620
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xF4), Broadcom BCM43xx 1.0 (5.106.98.100.17)
Bluetooth: Version 4.1.7f2 12718, 3 service, 21 devices, 3 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: APPLE HDD WDC WD10EALX-408EA0, 1 TB
USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc52b, 0x14300000 / 1
USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1a100000 / 2
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8511, 0x1a110000 / 3
USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1d100000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2412, 0x1d180000 / 3
USB Device: BRCM20702 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x1d181000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x828b, 0x1d181300 / 6Boot into Recovery mode, launch Disk Utility, select the startup volume ("Macintosh HD," unless you gave it a different name), and run Repair Disk (not Repair Permissions.) If any problems are found, repeat. Then reboot as usual.
If you don't already have a current backup, you must back up your data, if possible, before you take the above step. You may be able to back up, even if the system isn't bootable. Ask if you need guidance.
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