Macbook boots with a blank white screen, no logo, startup disks wont load either.. help?

Holding option doesn't work, taking out the battery doesn't work, running out of ideas... suggestions/questions to help me out?

UPDATE: now its booting with the flashing folder.

Similar Messages

When I try to access my iTunes Store from my iPhone 5 it opens with a blank white screen. Help!

I've tried for several days to open my iTunes Store on my iPhone. Every time it opens, but with a blank white screen.

Hi Upswife,
When troubleshooting iTunes Store connection issues, the following articles provide the best information:
First, try signing out of your account in Settings > iTunes & App Store. Once signed out, go ahead and sign back in.
iOS: Changing the signed-in iTunes Store Apple ID account
http://support.apple.com/kb/HT1311
If the above did not resolve your issue, refer to the following:
Can't connect to the iTunes Store
http://support.apple.com/kb/TS1368
If you haven't been able to connect to the iTunes Store:
- Make sure that your iOS software is up to date by connecting your iOS device to iTunes and clicking on Check for Update in your device's Summary page in iTunes.
- Check and verify that you are in range of a Wi-Fi router or base station. If you are on a 3G capable device, make sure that cellular data is turned on from Settings > General > Cellular.
- Check to make sure you have an active internet connection. You can check the User Guide for your device for help with connecting to the internet.
- Check to make sure other devices (portable computers, for example) are able to connect to the Wi-Fi network and access the internet.
- Try resetting (turning off and then on again) your Wi-Fi router
- If the issue still persists see, iOS: Troubleshooting Wi-Fi networks and connectionsoriOS: Troubleshooting Wi-Fi networks and connections.
Thanks,
Matt M.

When I bring up my Mozillafirefox, all I get is a window with a blank white screen. (I 'reinstalled' Firefox 3.66 about a month and a half ago, (and lost all my bookmarks as a result therein), and hope I can get my firefox back this time without having t

When I bring up my Mozillafirefox, all I get is a window with a blank white screen, (and the firefox logo). (After using Firefox very happily for over a year, I had to 'reinstall' Firefox 3.66 about a month and a half ago, (and lost all my bookmarks as a result therein), and hope I can get my firefox back this time without having to reinstall. Mozilla Firefox is still listed as one of my active programs). HELP! Is there a way to get my firefox back without reinstalling? Many thanks!
== This happened ==
Every time Firefox opened
== June 30, 2010 ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)

same problem. wtf. just happened one day when i went to use it. nothing out of the ordinary installed either....

Quicktime on some websites is playing with a blank white screen with audio

I am finding that on some web sites quicktime sometimes plays improperly in Firefox in a recent build. I get a blank white screen but the audio still plays. I have spoken to others who are experiencing the same issue.
The issue will sometimes resolve itself if the window is resized, the scroll bar is moved or the page is refreshed. The later only works occasionally.
It is not occurring on the machine that I'm writing this from. It is happening on both PPC Macs as well as Intel Macs.

They only charge you the $49 for talking to someone on the phone, which I don't recommend anyways because lots of times the machine needs to actually be looked at.
I would reserve an appointment at the Apple Store Genius Bar. They DO NOT charge you even if you don't have a warranty. They only charge you if you want them to fix it for you, not for the actual diagnosis of the problem. If you can fix it yourself, they can show you for free and you can do it.
If you want them to fix it for you, they will charge you for the labor, not the actual appointment.
http://apple.com/retail/geniusbar

IBook with a blank (white) screen

The iBook boots up normally, but the screen is blank.
The back-light is on but there are no images at all on the LCD
When hooked to an external monitor it works just fine so I don't think it's that "loose chip on the motherboard" malfunction.
Things I tried:
If I start the computer from the install disk, it still happens.
I ran the "Apple Hardware Test" disk from my original iBook disks (v 2.2.1) which found no problems.
TechTool 3.0.4 also found no problems.
I replaced the LCD and the ribbon cable and the problem remains.
Tried the catch-all zapping the PRam etc. and F1/F2 to brighten or dim the screen
This came on very suddenly, the computer was operating perfectly the day before with no signs that the display might be going bad.
I wondered if maybe a setting or preference had gone bad but if I try to recalibrate the screen with an external monitor attached, it calibrates the external monitor.
Anybody got any ideas?
iBook G4, 1.2MhZ, 24+Gig available

Hi and thanks for the response.
Somebody made that suggestion on MacForums, I found it just this afternoon.
I just finished pulling the LCD inverter and the cable out of my parts iBook and installing them.
No luck.
(The parts iBook worked fine when I retired it)
I did a close inspection of the offending chip with a 20x loupe, I couldn't see anything wrong.
Just to be sure, I tried putting pressure directly on the offending chip and restarting the iBook,
I still get a white screen.
I can't say that it's NOT the motherboard, but it's not the common motherboard failure.
The computer works fine with an external display.
Just to recap for those who didn't read the first post:
Tried 2 different screens, one brand new.
Tried 2 different ribbon cables to the screen.
and now; replaced the LCD inverter and cable.
Pram, yadda yadda yadda
TechTool and the iBook Apple Hardware Test both show normal.
The F1 and F2 keys have no effect, but the backlight does dip when you plug in the external monitor or the machine goes into energy saver.
The computer boots up and works normally on an external monitor,
the screen is not black, it's white. The fan does not run wild.
I don't know why but I keep feeling like it's a software issue.

Installing Yosemite left me with a blank white screen, and resterting was no help. Any suggestions?

I downloaded Yosemite, stratd the installatio, and left the room with 5 minutes left on the install. When I came back 10 minutes later, all I had wa a white screen. I rebooted, got the Apple graphic and loading bar, and went back to the white screen when the bar finished. Welcoming any ideas on what to try next.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If a desktop Mac hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Slow boot up (stays on white screen for 5-10mins)/bluetooth not available. Help please!

For some reason my iMac boots up really slow and says bluetooth not available which has resulted in me using usb keyboard and mouse. Anyone know how i can fix this?

Disable the Lion resume feature ...
Open System Preferences > General
Deselect: Restore windows when quitting and re-opening apps
Remove any items listed in: System Preferences > Users & Groups > Login Items
Same for HD > Library > StartupItems
Not enough free space on the startup disk can slow startup time.
Click the Apple menu icon top left corner of your Desktop. From the drop down menu click About This Mac > More Info > Storage
Never all free space to fall below 15%.
As for Bluetooth. Open the Finder. From the Finder menu bar click Go > Go to Folder
Type this exactly as you see it here: /Library/Preferences
Click Go
Move the com.apple.Bluetooth.plist file from the Preferences folder to the Trash.
Restart your Mac.

Why arent any videos working on my firefox browser? Youtube has an error message, and all other videos and ads come up with a blank white screen

It's one of those problems where it works like one minute, and then suddenly stops working the next. I know for a fact it has to do with the flash player in some way. I've had this problem before and found the solution, but for some reason i cant find it again, and forgot how i solved it. I've tried to redownload both adobe flash player and firefox but it didnt solve anything, disabling adblock doesnt help, disabling the hardware acceleration a little but useless difference, i have tried to disable the flash player add-ons and enabled them, both dont work, i only have 1 version of flashplayer( the most recent), and I am too frustrated to keep searching for an answer that is correct, when all i can find are the wrong ones over and over again . If anyone knows how to solve the problem where the FIREFOX(only) browser shows youtube as having the error " an error has occurred. Please try again later. " and all other videos and ads have a white blank screen, PLEASE help
also, everything works on google chrome and IE

also, the last solution i had didnt require me to install an earlier version of flashplayer or firefox, and it was the same problem

Urgently need help: blank white screen at start with unusual symbol...

Hi guys,
I just turned on my 24 inch early-2008 model iMac, and it came up with a blank white screen, with a grey circle and a line through the middle of the circle. It doesn't say what this means in the manual. Recently, I have been having numerous troubles with my iMac, and I have seen the symbol of the grey folder with the question mark, but not this new symbol. I only just got off the phone to the Apple people when this happened.
What does this mean? Is my computer done for?

Have a read here http://support.apple.com/kb/TS2570
For starters, start your Mac while holding down the Alt/Option-key until the Boot Selection screen is shown.
Choose to boot into OSX (usually the icon labeled Macintosh HD).
If succesful and you get into OSX go to System Preferences the Startup Volume and reset your OSX to be the default.
Stefan

Creative Cloud is a blank white screen, can't download any apps, how do I fix?

Hello all,
PLEASE HELP!!
I downloaded Ai as a trial version, then purchased CS6 on a 12 month.
Now I'm trying to download other apps (tried Photoshop, Flash and Premiere Pro), however when I click 'download' to try and get the other apps Creative Cloud pops up and it's a blank white screen.
Nothing happens, anthing to click NOTHING.
I've tried shutting the computer down, reinstalling Creative Cloud. Even tried downloading the above programs as trial versions (to start with) but CC just keeps popping up with a blank white screen.
How do I fix, or better still just get the apps I'm after?

Hi,
Welcome to the Community!
Rename the opm.db file.
Close the Creative Cloud application if it's running.
Navigate to the OOBE folder.
Windows: [System drive]:\Users\[username]\AppData\Local\Adobe\OOBE
Mac OS: /User/<username>/Library/Application Support/Adobe/OOBE folder
Rename the opm.db file to opm_old.db
Launch Creative Cloud
Thanks!
Ankit

My website is a blank white screen!

Hi. Last weekend I added a couple of blog entries to my site (first time I've used iWeb THIS YEAR). When I hit "publish", I had publish errors. I tried a couple more times and finally it told me my site had been published, but when I went to my site, the new entries weren't there. Perplexed, I decided finally to try using "publish all to MobileMe". That process took about 90 minutes. I got the message that my site had been published again, only this time when I went to my site, I get nothing but a blank white screen! My site is gone! Any help would be appreciated.

Hi
I have the Same problem with a white Homepage instead of Pictures and so on. But in my case, it's not the first, but all other pages My HP is www.timojahn.de
Can you help me please as well? What I did to create a HP is: I createt a white page Px 1020 X 624 duplicatet it and I set an Ok for "add to the navigation but I did not set an ok or the show navigation. Beside that I set an empty Box over the background pic. That textbox is blank and I use that only to create a hyperlink.. Sorry for my English. I'm German...
It would be great if you could give me a hint.
Thanks,
Best wishes
Timo Jahn

ITunes store issue .. blank white screen

Ever since updating to the iTunes 11.1 earlier in the week, every time I go to access the iTunes Store it fails to load properly and i'm left with a blank white screen. Ive tried reinstalling/repairing itunes but both failed to help olve the issue.

Hello jdtv05,
I found a few of articles that might help with the issue you are experiencing with the iTunes Store.
First, I recommend reviewing the steps in this article:
Apple software on Windows: May see performance issues and blank iTunes Store
http://support.apple.com/kb/TS4123
If you are still not able to access the store, I recommend continuing with the following articles:
Can't connect to the iTunes Store
http://support.apple.com/kb/TS1368
iTunes: Advanced iTunes Store troubleshooting
http://support.apple.com/kb/TS3297
Thank you for using Apple Support Communities.
Best,
Sheila M.

TS1382 my kid's ipod has a blank white screen - how do I fix it?

my 7 year old put a passcode on his ipod and after entering the passcode wrong three times has been left with a blank white screen. How do I fi this?

Hello Tiger 42,
Thanks for using Apple Support Communities.
Please try to restart and reset your iPhone if it is unresponsive.
Turn your iOS device off and on (restart) and reset
http://support.apple.com/kb/HT1430
Take care,
Alex H.

Macbook does not shut down or restart. It stops at an blank white screen with the cursor moving around it. Updated to the latest software

I have a Macbook Air 13.3" 2012 model. For a couple of days my Macbook does not shuts down. It just stops at a blank white screen with the cursor still hovering around it. I have to shut it down forcefully every time using the power button.

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Step 1
For this step, the title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
In the top right corner of the Console window, there's a search box labeled Filter. Initially the words "String Matching" are shown in that box. Enter "BOOT_TIME" (without the quotes.)
Each message in the log begins with the date and time when it was entered. Note the timestamps of the BOOT_TIME log messages, which refer to the times when the system was started. Now clear the search box and scroll back in the log to the last boot time when you had the problem. Select the messages logged before the boot, during the time something abnormal was happening. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
For example, if the system was unresponsive or was failing to shut down for three minutes before you forced a restart, post the messages timestamped within three minutes before the boot time, not after. Please include the BOOT_TIME message at the end of the log extract—not at the beginning.
If there are long runs of repeated messages, please post only one example of each. Don’t post many repetitions of the same message.
☞ When posting a log extract, be selective. A few dozen lines are almost always more than enough.
☞ Some private information, such as your name, may appear in the log. Anonymize before posting.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Step 2
In the Console window, select
          DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
(not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar.
There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A crash report has a name that begins with the name of the crashed process and ends in ".crash". A panic report has a name that begins with "Kernel" and ends in ".panic". A shutdown stall report has a name that ends in ".shutdownstall". Select the most recent of each, if any. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot. It's possible that none of these reports exists.
I know the report is long, maybe several hundred lines. Please post all of it anyway.
☞ If you don't see any reports listed, but you know there was a crash or panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
☞ Please don’t post other kinds of diagnostic report—they're very long and rarely helpful.

After reading and resetting everything with Keyboard I still get blank white screen. The only way I can boot to Mavericks is unplug power cord, push and hold power button while plugging power cord in. Fans at full speed.

After reading and resetting everything with Keyboard I still get blank white screen on 2nd? page of boot. The only way I can boot to Mavericks is unplug power cord, push and hold power button while plugging power cord in. Fans run at full speed, machine boots then runs normal except the dvdrw will not . The mid 2011 IMAC had the same problem with LION. I changed hard drives, formatted, and installed a clean install of latest os x mavericks. Any help would be greatly appreciated.
EtreCheck version: 1.9.15 (52)
Report generated August 30, 2014 at 6:56:41 PM EDT
Hardware Information: ?
    iMac (21.5-inch, Mid 2011) (Verified)
    iMac - model: iMac12,1
    1 2.5 GHz Intel Core i5 CPU: 4 cores
    4 GB RAM
Video Information: ?
    AMD Radeon HD 6750M - VRAM: 512 MB
        iMac 1920 x 1080
System Software: ?
    OS X 10.9.4 (13E28) - Uptime: 0 days 0:16:53
Disk Information: ?
    ST3120026AS disk0 : (120.03 GB)
    S.M.A.R.T. Status: Verified
        EFI (disk0s1) <not mounted>: 209.7 MB
        Untitled (disk0s2) / [Startup]: 119.17 GB (87.12 GB free)
        Recovery HD (disk0s3) <not mounted>: 650 MB
    HL-DT-STDVDRW GA32N
USB Information: ?
    Apple Inc. FaceTime HD Camera (Built-in)
    CHICONY USB NetVista Full Width Keyboard
    Apple Inc. BRCM2046 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Computer, Inc. IR Receiver
    Apple Internal Memory Card Reader
Thunderbolt Information: ?
    Apple Inc. thunderbolt_bus
Gatekeeper: ?
    Anywhere
Kernel Extensions: ?
    [loaded]    com.nvidia.CUDA (1.1.0) Support
    [loaded]    com.sophos.kext.sav (9.0.61 - SDK 10.7) Support
    [loaded]    com.sophos.nke.swi (9.0.53 - SDK 10.8) Support
Startup Items: ?
    CUDA: Path: /System/Library/StartupItems/CUDA
    FanControlDaemon: Path: /Library/StartupItems/FanControlDaemon
Launch Daemons: ?
    [loaded]    com.adobe.fpsaud.plist Support
    [running]    com.arcsoft.eservutil.plist Support
    [running]    com.bjango.istatmenusdaemon.plist Support
    [loaded]    com.oracle.java.Helper-Tool.plist Support
    [running]    com.sophos.autoupdate.plist Support
    [running]    com.sophos.configuration.plist Support
    [running]    com.sophos.intercheck.plist Support
    [running]    com.sophos.notification.plist Support
    [running]    com.sophos.scan.plist Support
    [running]    com.sophos.sxld.plist Support
    [running]    com.sophos.webd.plist Support
Launch Agents: ?
    [running]    com.arcsoft.esinter.plist Support
    [running]    com.bjango.istatmenusagent.plist Support
    [loaded]    com.nvidia.CUDASoftwareUpdate.plist Support
    [loaded]    com.oracle.java.Java-Updater.plist Support
    [running]    com.sophos.uiserver.plist Support
User Login Items: ?
    Macs Fan Control
    Firefox
Internet Plug-ins: ?
    FlashPlayer-10.6: Version: 14.0.0.176 - SDK 10.6 Support
    Flash Player: Version: 14.0.0.176 - SDK 10.6 Support
    QuickTime Plugin: Version: 7.7.3
    JavaAppletPlugin: Version: Java 7 Update 67 Check version
    Default Browser: Version: 537 - SDK 10.9
Audio Plug-ins: ?
    BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
    AirPlay: Version: 2.0 - SDK 10.9
    AppleAVBAudio: Version: 203.2 - SDK 10.9
    iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins: ?
    Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
3rd Party Preference Panes: ?
    CUDA Preferences Support
    Fan Control Support
    Flash Player Support
    Java Support
Time Machine: ?
    Time Machine not configured!
Top Processes by CPU: ?
         1%    WindowServer
         1%    fontd
         0%    firefox
         0%    SystemUIServer
         0%    SophosWebIntelligence
Top Processes by Memory: ?
    229 MB    firefox
    156 MB    SophosScanD
    152 MB    InterCheck
    131 MB    com.apple.IconServicesAgent
    115 MB    SophosAntiVirus
Virtual Memory Information: ?
    424 MB    Free RAM
    1.53 GB    Active RAM
    1.37 GB    Inactive RAM
    699 MB    Wired RAM
    1.26 GB    Page-ins
    0 B    Page-outs

I'd start by getting rid of the following software responsible for these extensions.
Kernel Extensions: ?
    [loaded]    com.nvidia.CUDA (1.1.0) Support
    [loaded]    com.sophos.kext.sav (9.0.61 - SDK 10.7) Support
    [loaded]    com.sophos.nke.swi (9.0.53 - SDK 10.8) Support
Startup Items: ?
    CUDA: Path: /System/Library/StartupItems/CUDA
    FanControlDaemon: Path: /Library/StartupItems/FanControlDaemon
Use the uninstaller provided with the Sophos software. You can uninstall CUDA via the preference pane. Be sure you remove the com.nvidia.CUDA extension which is located in the /System/Library/Extensions/ folder. Not sure if Fan Control has an uninstaller so you will have to do it manually:
Uninstalling Software: The Basics
Most OS X applications are completely self-contained "packages" that can be uninstalled by simply dragging the application to the Trash. Applications may create preference files that are stored in the /Home/Library/Preferences/ folder. Although they do nothing once you delete the associated application, they do take up some disk space. If you want you can look for them in the above location and delete them, too.
Some applications may install an uninstaller program that can be used to remove the application. In some cases the uninstaller may be part of the application's installer, and is invoked by clicking on a Customize button that will appear during the install process.
Some applications may install components in the /Home/Library/Applications Support/ folder. You can also check there to see if the application has created a folder. You can also delete the folder that's in the Applications Support folder. Again, they don't do anything but take up disk space once the application is trashed.
Some applications may install a startupitem or a Log In item. Startupitems are usually installed in the /Library/StartupItems/ folder and less often in the /Home/Library/StartupItems/ folder. Log In Items are set in the Accounts preferences. Open System Preferences, click on the Accounts icon, then click on the LogIn Items tab. Locate the item in the list for the application you want to remove and click on the "-" button to delete it from the list.
Some software use startup daemons or agents that are a new feature of the OS. Look for them in /Library/LaunchAgents/ and /Library/LaunchDaemons/ or in /Home/Library/LaunchAgents/.
If an application installs any other files the best way to track them down is to do a Finder search using the application name or the developer name as the search term. Unfortunately Spotlight will not look in certain folders by default. You can modify Spotlight's behavior or use a third-party search utility, EasyFind, instead.
Some applications install a receipt in the /Library/Receipts/ folder. Usually with the same name as the program or the developer. The item generally has a ".pkg" extension. Be sure you also delete this item as some programs use it to determine if it's already installed.
There are many utilities that can uninstall applications. Here is a selection:
    1. AppZapper
    2. AppDelete
    3. Automaton
    4. Hazel
    5. AppCleaner
    6. CleanApp
    7. iTrash
    8. Amnesia
    9. Uninstaller
10. Spring Cleaning
For more information visit The XLab FAQs and read the FAQ on removing software.
Be sure to remove your two Login Items. Finally do this:
Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
Reinstall Lion, Mountain Lion, or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
     Note: You will need an active Internet connection. I suggest using Ethernet
                 if possible because it is three times faster than wireless.

Macbook boots with a blank white screen, no logo, startup disks wont load either.. help?

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