Mac book pro early 2011 takes a lot of time to start up and shut down.

I have a mac book pro its early 2011 15" i updated it from snow leapord to lion since then i have been having a problem with the shutdown it takes a really long time. And i am now concerned because my mac took a lot of time to start up today it kept showing me the apple symbol for 3 min then it showed the login screen can u guys help me weather there is some issue with my mac or most of u are getting this problem. Should i install snow leapord  again or should i bear with the issue untill an update is there pls help im really worried..... Thank you.

Shaikh
You'll only be abe to repair permissions on the partition where your operating system is installed. For instance the disk on which I have Lion installed is name MacJoseph so that is the only disk I can repair permission on unless I boot from an install DVD. To do a clean install see these instructions. It's not difficult at all. This article may explain more about a clean install. To re-download the Lion installer open your App store application, at the top of the App store where it say's 'Purchased' hold down the option key while clicking on 'purchased.' This will open your purchases and allow you to download Lion. When the installer finishes downloading quit the installer and it will be in your applications folder. Hope this helps.
Joseph

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    Hi,
    I have installed Mavericks os x 10.9.3 to my mac book pro early 2011 and afte that it crash every time I log in.
    I tried many things such as:
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    2. I tries to safe boot and it worked and I am able to log in and stay in to it ..infact writing this in safe mode ..
    3. I tried moving many of teh thried pary software in trash such as plex, vuze, u torrent etc..and also erazed trash box
    4. I also hide log in items or just mius most od those except TmLogin Mgr that does not allow to minus...I hope you understood this what I did ..simple system pref --> user and group and the login itms are removed
    STILL same issue it crash ever time I log in normally..
    one more point my key board was little damaged may be I say nmber SIX key does not work after little milk spill on this but after that it was unning just fine since last 3 month
    At the end I would like to put this report content ..sorry I know this is not good to put all this crap but it hard to understand if it hide some important infor that help you to suggest me the solution..
    I saw your nice responseall around on the form and I am kind of sure that you will be able to help me with this ..
    Also please tell me how to get back up in sfae mode I connected my external drive but it didnt show up in finder and I tried using time machine but I was nt even able to figure out what to do in that..may be I bi scare of doing trial and error ...
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    Thu May 22 22:38:01 2014
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    0xffffff80c2c4b2c0 : 0xffffff8029451df9
    0xffffff80c2c4b3c0 : 0xffffff802942aa6f
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    0xffffff80c2c4b430 : 0xffffff802978cc6e
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    0xffffff80c2c4b560 : 0xffffff80296000c0
    0xffffff80c2c4b5d0 : 0xffffff80295f5a55
    0xffffff80c2c4b6c0 : 0xffffff80295fc756
    0xffffff80c2c4b710 : 0xffffff80295fc25e
    0xffffff80c2c4b790 : 0xffffff80295df064
    0xffffff80c2c4bb10 : 0xffffff80297b5c2c
    0xffffff80c2c4bb70 : 0xffffff80295dfe4b
    0xffffff80c2c4bbc0 : 0xffffff80295f56d0
    0xffffff80c2c4bc00 : 0xffffff80295f149a
    0xffffff80c2c4bd80 : 0xffffff80295e96dc
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    0xffffff80c2c4bfb0 : 0xffffff80294f3c56
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    com.trendmicro.kext.KERedirect          1.0.0
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    com.apple.driver.AppleHWSensor          1.9.5d0
    com.apple.driver.AppleHDAHardwareConfigDriver          2.6.1f2
    com.apple.driver.AppleTyMCEDriver          1.0.2d2
    com.apple.driver.AGPM          100.14.15
    com.apple.driver.AppleMikeyHIDDriver          124
    com.apple.driver.AppleHDA          2.6.1f2
    com.apple.filesystems.autofs          3.0
    com.apple.iokit.IOBluetoothSerialManager          4.2.4f1
    com.apple.driver.ApplePolicyControl          3.5.26
    com.apple.driver.AppleUpstreamUserClient          3.5.13
    com.apple.driver.AppleSMCLMU          2.0.4d1
    com.apple.iokit.IOBluetoothUSBDFU          4.2.4f1
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.4f1
    com.apple.driver.AppleSMCPDRC          1.0.0
    com.apple.driver.AppleMikeyDriver          2.6.1f2
    com.apple.driver.AppleIntelHD3000Graphics          8.2.4
    com.apple.driver.AppleLPC          1.7.0
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.SMCMotionSensor          3.0.4d1
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.AppleHWAccess          1
    com.apple.driver.AppleIntelMCEReporter          104
    com.apple.driver.AppleThunderboltIP          1.1.2
    com.apple.driver.AppleIntelSNBGraphicsFB          8.2.4
    com.apple.driver.AppleMuxControl          3.5.26
    com.apple.driver.AppleBacklight          170.3.5
    com.apple.driver.AppleMCCSControl          1.1.12
    com.apple.driver.AppleUSBTCButtons          240.2
    com.apple.driver.AppleUSBTCKeyEventDriver          240.2
    com.apple.driver.AppleUSBTCKeyboard          240.2
    com.apple.driver.AppleIRController          325.7
    com.apple.driver.AppleFileSystemDriver          3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          35
    com.apple.iokit.SCSITaskUserClient          3.6.6
    com.apple.driver.XsanFilter          404
    com.apple.iokit.IOAHCIBlockStorage          2.5.1
    com.apple.driver.AppleUSBHub          666.4.0
    com.apple.driver.AppleSDXC          1.5.2
    com.apple.driver.AirPort.Brcm4331          700.20.22
    com.apple.iokit.AppleBCM5701Ethernet          3.8.1b2
    com.apple.driver.AppleFWOHCI          5.0.2
    com.apple.driver.AppleUSBEHCI          660.4.0
    com.apple.driver.AppleUSBUHCI          656.4.1
    com.apple.driver.AppleAHCIPort          3.0.0
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleACPIButtons          2.0
    com.apple.driver.AppleRTC          2.0
    com.apple.driver.AppleSMBIOS          2.1
    com.apple.driver.AppleACPIEC          2.0
    com.apple.driver.AppleAPIC          1.7
    com.apple.driver.AppleIntelCPUPowerManagementClient          217.92.1
    com.apple.nke.applicationfirewall          153
    com.apple.security.quarantine          3
    com.apple.driver.AppleIntelCPUPowerManagement          217.92.1
    com.apple.AppleGraphicsDeviceControl          3.5.26
    com.apple.driver.DspFuncLib          2.6.1f2
    com.apple.vecLib.kext          1.0.0
    com.apple.iokit.IOAudioFamily          1.9.7fc2
    com.apple.kext.OSvKernDSPLib          1.14
    com.apple.kext.triggers          1.0
    com.apple.iokit.IOSerialFamily          10.0.7
    com.apple.iokit.IOFireWireIP          2.2.6
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.4f1
    com.apple.driver.AppleHDAController          2.6.1f2
    com.apple.iokit.IOHDAFamily          2.6.1f2
    com.apple.driver.AppleSMBusPCI          1.0.12d1
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.7.0d11
    com.apple.iokit.IOSurface          91.1
    com.apple.iokit.IOBluetoothFamily          4.2.4f1
    com.apple.driver.AppleSMC          3.1.8
    com.apple.driver.AppleThunderboltEDMSink          2.1.3
    com.apple.driver.AppleThunderboltDPOutAdapter          3.1.7
    com.apple.driver.AppleGraphicsControl          3.5.26
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IONDRVSupport          2.4.1
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOGraphicsFamily          2.4.1
    com.apple.driver.AppleThunderboltDPInAdapter          3.1.7
    com.apple.driver.AppleThunderboltDPAdapterFamily          3.1.7
    com.apple.driver.AppleThunderboltPCIDownAdapter          1.4.5
    com.apple.driver.AppleUSBMultitouch          240.9
    com.apple.driver.AppleUSBMergeNub          650.4.0
    com.apple.iokit.IOUSBHIDDriver          660.4.0
    com.apple.driver.AppleUSBComposite          656.4.1
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.6
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOAHCISerialATAPI          2.6.1
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6
    com.apple.driver.AppleThunderboltNHI          2.0.1
    com.apple.iokit.IOThunderboltFamily          3.2.7
    com.apple.iokit.IOUSBUserClient          660.4.2
    com.apple.iokit.IO80211Family          630.35
    com.apple.iokit.IOEthernetAVBController          1.0.3b4
    com.apple.driver.mDNSOffloadUserClient          1.0.1b5
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    com.apple.iokit.IOAHCIFamily          2.6.5
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    com.apple.iokit.IOACPIFamily          1.4
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