Black screen after a substantive change of screen.

I tried basically change my wallpaper and the screen went black. Then I tried restarting. everything was fine until the log in page. But it became black again after I logged on my account. The guest account works fine.

I tried the PRAM and reset SMC, but they were unsuccessful.

Any advice would be appreciated. Thank you!

Try restarting your Mac.

Try to start:

-Stop your Mac

-Wait until your computer turns off and after that press the power button

-Just after you hear the startup tone, press in and hold the SHIFT key

-Release the SHIFT key when you see a gray Apple sign and the progress under this sign bar

-Once your Mac boot, restart dhcpd as you usually do.

If this does not help, follow the instructions below:

-Stop your Mac

-Wait until your computer turns off and after that press the power button

-Just after you hear the startup tone, press in and hold the SHIFT key

-Release the SHIFT key when you see a gray Apple sign and the progress under this sign bar

-Once you see office, start a scan Disk Utility to detect and repair file system errors (remember to choose your primary hard drive)

-Click on the disc to check, then, if requested to solve the problems on the repair disk

-After that click on verify disk permissions, and then click Repair disk permissions

-Once the process is complete, stop your Mac and turn it on again after 30 seconds

Apart from this, take a look at this article from Apple and follow the instructions to reset NVRAM shown here:How to reset the NVRAM on your Mac - Apple Support

Try resetting the system management controller: https://support.apple.com/en-us/HT201295

I hope this helps!

Tags: Notebooks

Similar Questions

  • After using a third party partition manager program left to extend my Windows 8 partition, the system of Windows 8 start to a black screen and Windows 8 partition of the drive letter has changed

    Original title: problems of Windows 8

    I have Windows 7 (32 bit) and Windows 8 (64-bit) is installed in a dual boot. I tried to extend the partition of Windows 8 with a third party partition manager. Subsequently, I restarted after having learned so much.

    Later, the first thing I saw was that the locked screen image is replaced by a blue color. Photos of the user are also missing. Once connected, it took a long time for windows everything ready, and I'm stuck in a black screen with the mouse pointer.

    I entered in Safe Mode and found that the drive for Windows 8 letter has been changed (C: = Windows 7;) D: = recovery partition; E: = Windows 8, new drive letter; F: = Windows 8, old drive letter), I tried to change the drive letter, but it does not work.

    Partition of Windows 7 works well (it is what I currently use to put this problem), and I can access the data in the partition of Windows 8. I tried the methods of different repair without result (such as chkdsk and sfc/scannow).

    Can someone help me with this please? Any help would be appreciated.

    Hello

    I understand that you have a problem of black screen with Windows 8 and the drive letter for the partition of Windows 8 is also changed. This problem is due to the use of the third party partition manager program because it affects the registry files and causes the instability of the system.

    Try to run auto repair from the Windows recovery environment and check if that helps.

    Method 1: start the recovery environment with installation of Windows 8 media.

    It is another way to boot the PC and launch recovery tools when something goes wrong with the operating system.

    Please follow the steps below. Insert the DVD to install Windows 8 on DVD-ROM and restart your computer.

    (a) once you start your computer by using the Windows DVD or the system repair disc, a black screen is displayed with the gray text "Press any key to boot from CD or DVD". Press a button on any.

    (b) select the good time and the type of keyboard .

    (c) click on repair your computer in the lower left corner.

    (d) select Troubleshooting to Choose an option screen.

    (e) click on advanced options in Troubleshooting screen.

    (f) click Auto repair of Advanced Options screen.

    (g) following, choose the operating system by clicking on its button.

    (h) Windows 8 will be looking for problems on the hard drives and verify that all required files are intact.


    Method 2: Run the restoration of the system of the Advanced Options screen.

    System Restore to restore your computer to a previous state, quickly and easily without losing any of your files and personal settings. Sometimes when you install programs or drivers, they can affect some system settings and prevent other programs to function properly. You can use system restore to restore these settings to their previous state

    Follow these steps:

    (a) once you start your computer by using the Windows DVD or the system repair disc, a black screen is displayed with the gray text "Press any key to boot from CD or DVD". Press a button on any.

    (b) select the good time and the type of keyboard .

    (c) click on repair your computer in the lower left corner.

    (d) select Troubleshooting from the Choose an option screen.

    (e) click on advanced options in Troubleshooting screen.

    (f) select System restore.

    After the system restore your documents and files will always remain to their previous state.

    If you do not install Windows 8 media, I suggest you connect to any other computer and create a floppy disk to install Windows 8. Using this disk, you can run the troubleshooting provided methods.

    How to create the installation media for a PC refresh or reset:

    http://Windows.Microsoft.com/en-us/Windows-8/create-reset-refresh-media

    You can also try the same steps using the bootable USB key. You must select USB as the first boot to the BIOS device.

    Note: Microsoft don't recommend any third-party partition manager program because it corrupts the registry files and cause the instability of the system.

    Write to us if you're still having problems. We will help you.

    Kind regards

  • Black screen after startup (no home screen)

    I was just with the Firefox browser, looking for patterns (no piece, first... use airplane mode and not wifi) and when I clicked on the cog icon in Firefox the buggy device. He showed me a message saying that the home screen has crashed. Now the device boots (displays the logo of LG, the animated Fox, my carrier logo (Vivo, of the Brazil) and Firefox OS logo, but it goes to a blank screen (it is actually a black screen with high bar appearing, showing that it is on that plane and battery.) If I press the home button (or hold it) the phone vibrates, but nothing happens. If I pressed the power button a menu appears with: "Turn airplane MODE" (which is annoying because it is already on, but if I choose what to disable), "Silence incoming calls", "restart", "Power Off". There is the option "Cancel". Each of them works, but I don't know what to do.
    Oh, I tried to bring together the power, them increase the volume and the buttons on the home screen when the phone is off, but nothing happens. It turns when I release the home button. In addition, the volume and lock (or power) buttons works and change the volume / locks the phone...
    What should I do?

    The phone is a LG Fireweb, bought in the Brazil.

    Update, I tried to discount backwards, looks like you need the power, the House hold and volume KEYS until the LG screen appears, then release them. Worked well after the reset (so far).

  • Black screen after the Bootcamp

    I just installed a Windows 10 drive to my mac pro end 2012 book. I had some problems when the bootcamp says "cannot copy files of windows (or something like that). However, finally I managed to resolve each of them, the windows of the files have been successfully copoed, and after that I chose to give my windows system 230 G and 270 G for my macbook pro.

    I clicked the button installed, waited a few seconds and the laptop computer just restarted (or close) by itself. It is automatically activated a white screen (which happens all the time when I turn it on). He stayed like that RPF about 5 minutes, and then it turned out to be just black. I mean by dark black, because I can still see a bit of light coming out of the screen. After that, nothing has changed.

    I have my USB connected since all this time and my energy plug. In my view, it is connected to the wifi too, but my mac remained black screen at least an hour and a half so far.

    Is this normal? I watched a youtube video, and he says that he will take a few minutes for the windows logo appears, which is certainly not the case. Im very worried right now: well I reboot by pressing the power button? Should I continue to wait? It's really frustrated. And please ignore the grammar errors that I may have made.

    Please leave a comment if you know what the problem is or if you know how to solve this problem, much appreciated! < 3

    Welcome to Apple Support communities

    The only thing you can do at this stage is to shut down your Mac. Then, after having turned it on again, hold down the ALT key until you see all available for your MacBook bootable disks, so you should see an option with a drive labeled as "Windows" USB icon Choose and let Windows install load, so you no longer have to follow the steps. Do not forget to keep the USB with Windows install is plugged.

    If you don't see the USB as a bootable disk, and then the Windows Installer may be damaged or your MacBook Pro does not support a USB drive installation.

  • Black screen with blinking cursor after the passage in MSC mode

    I followed the recommendation to disable startup secure in the Bios then move the UEFI Bios to the CSM. But when I go to set up what I see is a black screen with a stable cursor in it. And it doesn t go in the Bios.

    The black screen remains.
    I turn off the laptop and once again now, but I still have a black screen with a cursor that is stable and that s it.

    It's like that and it doesn t go to windows even go into the Bios, I can t.
    What should I do?

    Help, please...

    Hello

    After the passage of the CSM and disabling secure boot UEFI mode, you will not be able to boot from the HARD disk as the installation of Windows 8 requires secure boot and the mode of the UEFI.

    Now you can boot from the disc or other media bootable (USB flash key) to install the Windows 7 system.

    I guess you've made these changes installed Windows 7. Right?

    By the way: what model of laptop you have exactly?

  • Qosmio F60 - 11 c - black screen after update of Windows 7 Directx11

    Hello
    Two days ago I've updated Directx version because I want to try call of Duty Black Ops on my laptop. I've updated normally and it works perfectly but after a day at the restart of Windows7, after Windows 7 logo, I have a black screen and cpu fan running at full speed. So I used Toshiba Recovery Center and I got my pc to make settings. When it installs the drivers crashing into the graphics driver again. After that, I installed Windows 7, but I am using my computer on the resolution of 640 x 480 with 8 colors... And I can use the security with network mode but if I install the driver for GT - 330M and restart the computer, it hangs on after restarting windows 7.
    I tried to change the options in the bios, but it's always the same problem.

    * My :* graphics card Nvidia GT330M
    * :* Bios version 2.50 / EC2.40 (last update on the Web from Toshiba site)
    * Nvidia Driver :* 260.64

    I downloaded 197.16, 197.71, 258.80 drivers Nvidia and laptopvideo2go, but when I try to install these versions, it does not compotible with my control panel.

    IM totally crushed now and I do not want my laptop to Toshiba Technical Service which is in Turkey. For an easy fix, they spent 30 days...

    You have an idea?

    Thanks in advance
    Macaws.

    Post edited by: araskalyoncu

    > I used Toshiba Recovery Center and I got my pc to make settings
    What happens then?
    Problems after installing the operating system recovery disc?

    > When it installs drivers crashing into the graphics driver
    You n t need to install all the drivers after installing the recovery disc. The recovery disk installs OS Win and also drivers needed!

    > I downloaded 197.16, 197.71, 258.80 drivers Nvidia and laptopvideo2go, but when I try to install these versions, it does not compotible with my control panel.

    If you want to install non-Toshiba drivers, you will have to do it in the Device Manager.
    You must use the Advanced installation procedure and have point to the driver files (ini files) that you have downloaded and stored on the HARD drive.
    You have simply force windows to select this driver.

  • Qosmio F60 - 10J: black screen after XP Nvidia GT 330 M driver installation

    Hello

    On my Qosmio F60 10J, I installed windows XP on a DD of esata, I found almost all the XP drivers. XP works well, now...
    I downloaded GT 330 m XP drivers on the Nvidia site because the Web from Toshiba site, it's only for Windows 7.

    I installed these drivers XP of 330 m easily... but to reboot XP, after the XP logo, I have a black screen and a fan running at full speed.
    I tried to change the options in the bios, but it's always the same problem.

    You have an idea?

    Thanks in advance
    Franck

    Hello

    Seems that the driver is not fully compatible.
    Try the www.omegadrivers.net graphics card driver
    But note; Drivers Toshiba not in use ONLY at your own risk.
    As far as I know, these 3 third-party drivers are not configured for mobile use and this means that the GPU could overheat and damage.

  • NB100 implemented black screen after Windows (with bar)

    Hello
    I have laptop nb100.

    My Windows XP is not loading (learn how to Windows with screen bar, then it blocks black).

    I thought just re-intall Windows XP, so I tranfered my WinXP to .iso format and placed on my formatted USB (XP and .iso seem well).

    I changed my computer to boot from USB and f12 on start up and it goes to the USB port, no probs. Then, I get a black screen with these choices:

    1, text-mode Setup (flash start again after)
    2nd, continuous mode GUI installation, setup + 1 start windows
    ---> DEBUGGING Options. Try if you have the hal.dll error<>
    Debug the rdisk 1 2 boot partition
    Debug the rdisk 1 3 boot partition
    Debug the rdisk 1 4 boot partition
    Debug the rdisk 2 1 boot partition
    Debug the rdisk 2 2 boot partition
    Debug the 2 3 rdisk boot partition
    Debug the 2 4 rdisk boot partition

    Option: text-mode installation 1, (start to flash again after).
    kicks in a blue screen with the Windows installation
    wallpaper load some info
    then it crashes on Setup starts windows

    I have Win Xp SP2, was originally installed SP3, but can not find the drive (have to SP2 and 3) so I have Win XP SP2 through ISO then installed on usb (not sure if that is the question)

    All I want is to re - install the computer (no I have not re - install discs), so I thought it would be easier to re XP - install.

    Any assistance received very highly.

    Thanks in advance :)

    Hello

    > so I tranfered my WinXP in .iso format and put on my formatted USB key

    Sorry, man, but I did not understand how you have transferred it.

    I advise to get windows copy disk and USB drive to make a bootable usb drive to install windows.

    You can make a USB bootable in 2 ways:

    1. manually with the command prompts

    http://forums.computers.Toshiba-Europe.com/forums/thread.jspa?threadID=53324&TSTART=60

    2 automatically using programs such as WinSetupFromUSB or Novicorp WinToFlash

    http://myeeeguides.WordPress.com/2008/11/15/winsetupfromusb-install-Windows-XP-from-USB-flash-drive/

  • EliteBook 840 G1: Elitebook 840 G1: black screen with cursor after recovery from sleep mode

    Since yesterday, 15. August, whenever I take the laptop to sleep, all I get is a black screen and after a minute, a cursor on a black screen. The laptop does not revocer of this State. Only solution is to force the reboot.

    A reinstall of Win 10 has not changed anything.

    Video driver is version Intel official site. The version is 10.18.15.4248.

    I don't know if I got the version before the reinstall.

    I have installed nearly all other official drivers from the HP page packages.

    Any suggestions?

    Problem solved.

    Cause: I updated the 256 Vram 512 MB. This caused the mess. Put in back has solved the problem.

    This looks like an obvious bug to me, but who is responsible? Intel or HP?

  • Qosmio G30-126 - black screen after the awakening of the mode standby

    Hello

    If I just put my Qosmio G30 - 126 mode (button or just close the housing cover) sleep it start back only with black screen. HD is being run but nothing else. I have to turn it off and start again with the start-up. Of course come screen with menu to speak of a problem... Don't have pictures. The resolution is minimum, I have to change.

    I'm please that reinstallation of the system, it's not what can solve problems.
    My question who will pay the time if she will not solve the problems, they said that it will be in all cases.

    Why I bought the warranty?

    PS. Admin confirms my messages...

    Post edited by: ADMIN

    Found this thread and I would like to share my knowledge with your
    I had a similar problem several months ago on my laptop with the XP operating system preinstalled.

    The MS patch KB917332 helped.

    [The monitor does not light when you move the mouse or press a key after you have configured the 'Power Options' settings on a Windows XP SP2 laptop | http://support.microsoft.com/kb/917332]

    See you soon

  • Black screen persists after the recent update of the BIOS

    ENVY of HP TouchSmart M7-J010DX

    Hello

    I recently received an update through HP who instructed me to update my BIOS, I did. Now, after I turn on my machine, I don't see is a black screen. The power light is on and the fan seems to work (I can feel the warmth of the event). I have a pretty good feeling that this recent BIOS update may have done something that has caused this, and I would like to cancel the updates to the BIOS, if possible.

    I looked at and tried everything what I found on this page of the site of troubleshooting HP, except for the part of memory modules as I did of the latest changes to the memory modules. None of these suggestions helped with the black screen problem.

    The machine was reconditioned at the factory, and I've had it for about a month, but began to use it recently. The only changes I have made are on the HARD drive: I recently picked up a new SSD, added to the machine and makes the HARD drive, the machine came with a secondary drive (after wiping). Everything worked perfectly well until the update to the BIOS.

    I don't know what else I should do/try at this point.

    Any suggestions?

    Hello Mrstenter and thank you for your response.

    Unfortunately, I saw this page, you suggested before posting, tried and it doesn't work.

    As a matter of fact, I had to return to HP for repair the machine. Following the conversation with a technical support engineer, we agreed that the problem is the update of the BIOS HP pushed out.

    In short, the update of the BIOS HP pushed to brick my machine, and I had to send to HP to have restored it I couldn't find anything else to deal with the update of the BIOS on my own.

    I appreciate your attempt to address the issue, however. I hope your solution helps others, but he couldn't help me.

  • Satellite A200-130 - had black screen after BIOS updated

    I have Satellite A200-130 I install a windows Vista OS with success and after that, I have saved all the driver I DOWNLOAD and put on a single folder... but then I accidentally open the configuration files of the BIOS that is "setup.exe" with the file "skae180a.rom".

    BOS update starts automatically and I can't cancel it because my keyboard doesn't work simply do not. Then the update fails. I tried to restart my laptop using the touchpad and after reboot I just get BLACK SCREEN and HD led flash just once and my CD/DVD drive is displayed for 5 seconds and nothing happens.

    Now my laptop remains the same... just 'black screen '.
    Can someone help me on this matter? I really need this laptop to be repaired.

    Hello
    I had exactly the same problem with my laptop A200, I spent so much time looking for a solution to this, I tried all the solution I got the net fourms but not at all, 100% bios chip be changed by ASP.
    UOP now I'm not sure that the A200 bios chip can be changed or I have to change all the Mo.
    I'll send it to ASP.

  • Black screen after restart of the Bootcamp Assistant

    Hello

    I understand that 10 Windows is not supported with the MBP Late 2011 officially by Apple, I have it working earlier today and had no problems at all. I tried to add another partition for windows side so that I would be able to install Deep Freeze on Windows have a clean install of Windows every time that I boot in there and have all my programs and files on what would have been called "Local D.

    I deleted the Windows partition and I deleted the first player who had only 200 MB normally created from windows which I believe that holds the MBR for the old Windows Installer install. I tried to create 2 different partitions in disk utility and that the load bootcamp. He said well obviously not, because the reader must be around to do this, I did the road together again, put my Windows 10 disc in and let bootcamp.

    I wanted the reader to have 51 GB of bootcamp, that I would use 300 GB for the 'Local D' drive and the rest of the SSD 1 TB drive, I got OS X El Capitan. If at this point, I have X amount of GB to OS X and 51 GB will be used so that the wizard has done for me, once the wizard bootcamp is made, it will restart OS X and brings me to a gray screen. Normally, it's just going to continue in the installation of Windows, but it takes me to a black screen and does nothing else. Is this by far where can I fix? I even tried simply to launch the installation of Windows Installer directly from the drive itself without going through installation of bootcamp by holding ALT and selecting the drive and he finally took to the installation without any problem and now it goes to a black screen and does not change even.

    And for those wondering, no I do not get a flashing cursor in the upper left corner of my screen. Its completely black.

    PerfectStory wrote:

    I deleted the Windows partition and I deleted the first player who had only 200 MB normally created from windows which I believe that holds the MBR for the old Windows Installer install.

    You have deleted the EFI Partition from Mac. Not a very good idea. She does not hold the MBR. Your Mac uses a hybrid MBR. The MBR and the boot for Windows Manager are two separate entities.

    I tried to create 2 different partitions in disk utility and that the load bootcamp. He said well obviously not, because the reader must be around to do this, I did the road together again, put my Windows 10 disc in and let bootcamp.

    Disk utility is now considered an invalid drive due to a missing EFI partition. How did you again the reader "XV"? If you start from W10 in the optical drive, it is no Bootcamp involved more.

    I wanted the reader to have 51 GB of bootcamp, that I would use 300 GB for the 'Local D' drive and the rest of the SSD 1 TB drive, I got OS X El Capitan. If at this point, I have X amount of GB to OS X and 51 GB will be used so that the wizard has done for me, once the wizard bootcamp is made, it will restart OS X and brings me to a gray screen. Normally, it's just going to continue in the installation of Windows, but it takes me to a black screen and does nothing else. Is this by far where can I fix? I even tried simply to launch the installation of Windows Installer directly from the drive itself without going through installation of bootcamp by holding ALT and selecting the drive and he finally took to the installation without any problem and now it goes to a black screen and does not change even.

    And for those wondering, no I do not get a flashing cursor in the upper left corner of my screen. Its completely black.

    Please after the release of the following Terminal commands.

    diskutil list

    Cs diskutil list

    sudo TPG - vv - r see the/dev/disk0

    sudo fdisk/dev/disk0

    The "sudo" commands will prompt to enter your password, and there do not appear to come back. You can also see caution against improper use 'sudo' and the potential loss of data due to an "abuse" of the order.

  • After upgrading the bios to version 2.13 t430u, it freezes at black screen

    Hi all

    After upgrading my lenovo T430u bios to version 2.13 it freezes at a black screen, and windows does not load. My machine has windows 7 Professional and the only way to make it work is to reset the bios settings, but after awhile, it freezes at black screen and windows 7 does not load again and need to reset the settings of the bios once more. Hope someone of you gyus can help me with this since is very frustrating.

    Lenovo has released a BIOS updated for ThinkPad T430u that resolves customer reports of black screen after upgrading the BIOS.

    CHANGES IN THIS VERSION

    Version 2.15

    [Problem resolves]

    -Fixed a problem with the black screen after BIOS update

    -Fixed a problem with the gray screen when turn off Bluetooth in the BIOS Setup

    V2.15 BIOS can be downloaded here: http://support.lenovo.com/us/en/downloads/ds031724

    Thank you

  • G62 b90 - ev: black screen after Windows loading

    Hello everyone, as you can see by the title I get black screen after loading of Windows at the same time as everything else works (hard drive of fans lights and sounds). I've tried several things, I read on troubleshooting thread, memory, diagnosis, diagnosis of hard drive, delete and change put the Rams, disconnect the battery and ac and keep the power button for 30secs hurry the ac without the battery but nothing. I also tried to use a monitor with hdmi cable but I get a blue screen when I try with the monitor. Also what happens during a format so I can't even through safe mode. IM really waiting for your answers and in the hope of a solution. Thanks in advance!

    Just because you use the key F11 to restore to factory does not mean that the recovery partition itself is not altered.

    Suggest you try instead the recovery discs or take it to the shop for advanced diagnostics.

Maybe you are looking for

  • Fusion app and mail merge

    Please can anyone help about a merger and mailing, I try to make the page numbers. I used to be able to do so using the application that I downloaded from http://iworkautomation.com/ however this seems to have disappeared and I found nowhere else. Ca

  • Out loging: S

    When I log on Skype after a few seconds I get out sgined! Show me "you have been disconnected", what should I do? And I changed the password too

  • error 80070026

    Hi I have the error code 80070026 and it says I need to install this? Any ideas? Please send im to * address email is removed from the privacy *.

  • Wireless network disconnected randomly without reason on Windows 7

    I just bought a HP with Windows 7 computer.  I was able to set up a wireless network, but every now and then, it stops just work.  I have a Belkin Wireless N Router and an Atheros AR9285 802.11b/g/n WiFi Adapter.  It's as if it will work for awhile..

  • Software Blackberry blackBerry Smartphones

    Help. I installed Blackberry Desktop Software 4.6 on my computer, but when my blackberry (v4.2.2.17) is connected, I cannot learn any Media Manager. The icon is visible but unavailable for me start the application. Can someone help me with this? Than