My macbook pro retina boots to black screen. It does not reset the PRAM.

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• Computer has a black screen and does not show the normal startup logo and more

  The computer that I use usually works well, until the next day, the day that I used it, ruined everything. My computer shows not the Windows 7 logo normal at startup, but instead, a bar with green lines in movement like the ones you see in older versions (Windows Vista), but now only the bar and did no logo in it and after starting does not display. It shows a completely black screen, but it makes a noise like the sound when she welcomes you to Windows 7. I tried safe mode and disabled the NVIDIA GeForce GT 220 graphics card and the screen works, but he is stuck at 800 x 600. In addition, the start screen is always the bar. How can I fix it? (Tried updating the gpu but still displayed black screen)

  Hello Rafael,.

  Thanks for posting your question on the Microsoft community.

  We need more information about the issue so that we can help you better.

  What is the brand and model of your computer?

  Thank you for details on the issue.

  This problem may occur because of corrupted display driver.

  I suggest to start your computer in safe mode, uninstall the display driver, restart your computer in normal mode

  mode and update driver from the website of the manufacturer of the computer display.

  Please see this link:
  Why my screen is black when I start Windows 7?
  http://Windows.Microsoft.com/en-us/Windows7/why-is-my-screen-black-when-i-start-Windows-7

  Important notes:
  Serious problems can occur if you modify the registry incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it. Then you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click on the number below to view the article in the Microsoft Knowledge Base:
  http://Windows.Microsoft.com/en-us/Windows/back-up-registry#1TC=Windows-7

  When you use system restore to restore the computer to a previous state, the programs and updates that you have installed are removed.

  I hope this information helps.

  Please let us know if you need more help.

  Thank you

• help my macbook pro retina 13inch started itself and turned off while in the case

  as the title, my Macbook pro retina (bought in 2014) is transformed and then turn off 5 minutes later while in his case today, I only noticed after reviewing the event log and seeing a start and stop.  How can this happen? the Mac was definitely off not asleep and I did not put a timer.

  It is unusual for a Mac to act this way, but this is not the first time that I heard about what's going on.

  It looks like a problem SMC and is easily fixed by a reset see here reset management system (SCM) controller on your Mac - Apple Support this will most likely solve the problem.

  If this isn't the case, then it could be a simple sticky switch?

  A visit to a Genius Bar is perhaps a good idea if the SMC reset does not work for you, and a new OSX installation did not help.

• MacBook Pro-life extendable start-up chime, but does not start

  I have a start 2011 15 "MBPro8, 2

  Quad Core Intel Core i7

  2.30 GHz

  Boot ROM version: MBP81.88Z.0047.B2A.1506082204

  Intel HD Graphics 3000 VRAM:512 MB

  AMD Radeon HD 6750M VRAM:1 GB

  8 GB of RAM 1333 MHz DIMM0

  It will not start.  Trying to start the machine, it enters a loop-

  1. startup chime

  2. grey screen with Apple

  3. the small wheel starts to turn under the Apple

  4. the screen goes black

  ... and the cycle starts over.

  The computer does not start in Mode safe.  In an attempt to safe mode the loop above has the addition:

  3. a progress bar is displayed but does not progress.

  I have reset the PRAM

  It will start up in target Mode, so I was able to recover data

  In target Mode, I was able to run first aid utility on the drive.  This has not fixed the problem.

  I can hold down the Option key and see Macintosh HD and the recovery Partition.  If I try to boot from the recovery partition, I get the same loop.

  I can start in the Test of online material, which revealed no material problems

  I can boot in Verbose mode and it always happens in the same place

  Execution fsck_hfs (version 226.1.1 of hfs)

  BootCacheControl: cannot open /var/db/BootCache.playlist: 2 no such file or directory

  ' ' It would be possible for me to insert the "var/db/BootCache.playlist" file using target disk mode?

  Other thoughts?

  Have you tried resetting the SMC?

  Reset the management system (SCM) controller on your Mac - Apple Support

• MacBook Pro 2015 (Middle Version) - black screen

  Hello

  I recently bought this product of Sri Lanka a new product and I have a very serious problem when you use the pc. the screen starts flashing and its comes to a black screen which I am unable to perform his work be only a month. to be honest, I like apple products and but after this im really disappointed. I look forward to working with these future products. After spending this much and if you don't get anything out of it?

  And the worst case, it's the closest place where we can communicate. not even a single email address in the message or communication that is not very professional everything.

  I gave the pc to the local store to fix it and they say that they are unable to replace, what they do is try to fix it by their self and will let me know I have no idea what to do after that.

  here after, if it does not, I won't be advising all my friend to buy apple because of this insecurity. IM really disappointed in you guys!

  I think your problem is that Apple has no official presence in Sri Lanka.  Here is a list of countries that Apple does business in directly or indirectly.

  https://support.Apple.com/en-us/HT201232

  You might consider to contact Apple and see if you can ship the Mac for them for repair.

  Ciao.

• MacBook Pro and SanDisk Ultra II 960 GB does not

  I bought two SSDs to 960GB SanDisk Ultra II for installation in a Late 2009 27 inch iMac and a MacBook Pro mid-2012. I could absolutely not anything other than a white screen on the 27-inch. I could get the external computer to boot via USB, but when it is plugged in SATA, it wouldn't start. OWC had a few caveats on the NVidia SATA bargaining chips down to a 1.5GBs of speed when you try to bind to a 6 G drive. I replaced it with an Electra OWC 3 G Reader (which worked perfectly). I returned the unopened SSD.

  My next goal is to enter the SSD in the MBP. He chips Intel SATA and is not supposed to have bizarre problems. Once again, I have installed the operating system and started via the USB port, no problems. It does not start when installed internally via SATA. If I drill the old HD, it starts immediately. The SSD makes a folder with one? in the middle.

  I have repartioned the reader for Mac. I also tried to clone with all disk utility, same result. I guess I could try SuperDuper or clone of carbon. I just installed another OWC drive in an other iMac and used disk cloning utility, and it worked perfectly.

  I wish that I had bought the OWC drive now, but I'm stuck with this open disk and I would like to make it work. Has anyone else had problems? I think that the drive is bad, but when in a dock player, it works very well and will start the computer via USB.

  When the SSDS was to the iMac 27 inches, she would not even allow the target disk mode, ot any source of start-up. I really thought that the video card was defective at first, but this player has been creating chaos.

  All the words of wisdom are welcome.

  To make a long story short, it's the SATA cable. The computer would boot from a classic HD so I thouhgt the SATA cable was OK.  Apparently, when these cables fail, they can operate at low speed, but there still may not work at all in trying to negotiate a connection with a 6 G SSD speeds. I also noticed that with the wrong cable, the link negotiated with the convnetional reader speed was 1.5 Gbit/s which was lower than expected. I replaced the cable of a reputable vendor and I got another job of SSD. I think the SanDisk that I ended up returning was really beautiful AND compatible.

  I was clued in after a brand that I know with certainty was compatible would not work either. PowerBookMedic sells relaible cables. "cheap" replacements are not recommended.

  Hope this helps someone else.

• MacBook pro running on IOS 10.11.5 does not connect to wifi on its own.

  My macbook pro does not connect to wifi instantly and sometimes not at all.

  While he looks for the networks, if I click the wifi icon, it shows my network wifi under 3 bars in the list of wifi, but even if I click on my wifi, it continues to search without connecting to it. After that it seeks for a while, it connects sometimes, but most of the time, a new screen will be pop up saying please choose a network and it will show my network on the list. If I click on my network and tap on connect, it will connect instantly.

  to connect faster, give less to think about:

  

  then ruthlessly prune this list select everything except your home network and use the [---] button to remove tham all except one that is important for you at this time.

  

  .

• Satellite C855D-135 - corrupt BIOS, black screen, keypad does not work

  Hello everyone.

  I had some problems with my laptop Toshiba Satellite C855D-135. I had to change my internal hard drive, so I decided to install windows 7 on it (I used to have windows 8 but do not have the CD and I could not find the license key sticker).
  So I went into the BIOS it go from UEFI to CSM, but something was not right and he seems to have corrupted the bios.
  I think I have it bricked, but some things still work.

  When I turn it on:
  -l' screen stays black (Yes, I tried it on another screen)
  -the keyboard is not working (the leds do not turn when I press the caps lock)
  -the fan works fine
  -cd player works fine
  -When I plug a USB key, it quickly flashes once, which seems to work
  -When I removed the memory bar, the computer has done is the series of beeps

  -J' tried to remove the battery, unplug and pressing the power button for centuries. (no luck)
  -J' tried to remove the CMOS battery to restore default bios. (no luck)
  -J' tried flashing the bios on a USB key, until I realized that the keyboard was not working and it was in vain.
  -J' tried to update the bios on a CD and it ran for a while, but nothing happened in the end. I tried to put these files on the CD:
  -IBIOS. BAT
  -C8610. FD (in the folder of Win8)
  -C610. FD (in the WIN7 folder)
  -J' tried to rename C8610. FD to the BIOS. FD

  I am out of ideas now.
  Could someone help me? Pretty please?
  I hope that this is not the motherboard that broke, coz I really didn't have the money to send it off to be repaired.

  In the history sounds very strange to me I never heard that that it would affect the BIOS to change the boot UEFI to MSC mode.
  In my opinion, there is a serious hardware problem. As you already linked to, it would probably be a motherboard failure.

  I recommend you to ask some technicians for hardware diagnostics to check the motherboard in order to be 100% sure about the fault.

  If you n t have enough money and the motherboard is really affected you could try to recover a part of 2nd hand

• Equium P300-19O - black screen and does not restart

  My Equium P300-19O had a blue screen of death after a few accidents occurred due to a broken Windows media player which 3 safe resets and then I get a blue screen of death.
  I restart the laptop, but now I have past the toshibia load up, but do not get further rather get a black screen with a dash flashing in the upper left corner.

  Please suggest anything that could help me get the laptop again.

  Hello

  Have you checked if you can boot into safe mode? You can try to start in safe mode if you go into the advanced boot menu by pressing F8 after you have switched on the laptop. Here you can choose.
  Maybe you can also try a system restore to a previous state.

  If it doesn t work it should boot from the recovery disk Toshiba and reinstalling Windows.

• Satellite P200D - black screen and does not just by running

  Hello everyone, I have a Toshiba Satellite P200D - 107 PSPBLE with configuration set-aside:

  Processor: Turion x 2 TL - 52 64-bit clocked at 1.6 Ghz
  Display: 17.3 inch
  Graphics card: Ati radeon x 1200
  RAM: 2 x 512 MB ram (1 GB total) which I upgraded to 1 x 2000 MB and 1 x 512 MB (for a total of 2.5 GB)
  OS: FACTORY CD WINDOWS VISTA HOME PREMIUM 32-BIT
  Power: Running on the direct power without the battery cable

  Although the pc is quite old sound fundamentally new barely there 1 year of normal use on it.

  PROBLEM:

  The screen goes black (no), even if the screen still has the backlight running, the laptop is still under tension, but its basically in a kind of deep hibernation with the fan running yet.
  The laptop screen turns off 5-10 minutes after windows loads, even if in idle, it also stops during installation of the operating system.
  I tried to run the music and the music stops when the screen goes black made all the hard disk activity which I believe indicates that it is not related to the video chip.

  TRIED SO FAR:

  1. open up the computer laptop and cleaned all dust processor, now CPU temp is 50 max, even for hard disk
  2. update the bios to the original to 1.70 - did not help
  3 connected external monitor also stops it the same time as the laptop screen indicating it is not not a screen issue
  4 reinstall OS several times
  5 tested memory with memtest64 - no error
  6. test the hard drive with hddregenerator - no error

  What I've noticed:

  If I leave just a 512 MB of ram in the laptop then the laptop stops not at all even in windows applications, tried to launch a game to remove video card and it works without problem for hours, but as soon as I add the stick of 2 GB or another origianal 512 stick it will go inside the black screen 5-10 min (or earlier) to get into windows.

  He never stops in dos mode (as in memtest, hddregen) even with 2.5 GB of ram.

  After that the screen goes black, if I stopped and then try to save, it it won't work at all, the screen stays black with the fan spinning and boot CD, I must absolutely disconect the power cord power and re - set before it starts again.

  Anyone has any ideas, I am experienced with the pc, but have never stumbled upon something so weird that I have just can't explain this problem that came straight from heaven.

  Toshiba to wake up, this forum is a total joke, you would think that you would be able to afford hiring a bunch of technicians to actually help people rather than rely on the users of the forum to do your work for your, you don't need to have a forum, if you don't have the staff to actually help people solve their problems.

• Desktop computer do not start; black screen; keyboard does not.

  Ok.  I turned on my desktop computer tonight and all I get is a black screen.  Keyboard does not work either.  Has gone through all the troubleshooting suggestions that I could find online (using my laptop), but nothing works.  I think maybe an automatic update Windows could be the problem.  You have any tips for me on what to try next?

  Hi aljbad1,

  Welcome to Windows Vista answers Forums!

  I would like to ask you a few questions in order to get a better understanding of this issue so that we can better help you.

  (a) what version of Vista are you using?

  (c) do you receive an error message when you start the system?

  Method 1: You can try to start safe mode and see whethyou can follow the below given steps:

  1. remove all floppy disks, CDs and DVDs from your computer and restart your computer.

  Click the Start button, click the arrow next to the button lock and then click on restart.

  2. do one of the following:

  a. If your computer has a single operating system installed, press and hold the F8 key as your computer restarts. You need to press F8 before the Windows logo appears. If the Windows logo appears, you need to try again by waiting until the Windows logon prompt appears, and then stop and restart your computer.

  b. If your computer has multiple operating systems, use the arrow keys to select the operating system you want to start in safe mode, and then press F8.

  3. Select safe mode and press enter

  Method 2: If you are able to start in safe mode, then you can try to perform a system restore and check if it works very well.

  To restore the operating system to an earlier point in time, follow these steps:

  1. Click Start, type system restore in the search box, and then click System Restore in the list programs.

  If you are prompted for an administrator password or a confirmation, type your password or click on continue.

  2. in the System Restore dialog box, click on choose a different restore point and then click Next

  3. in the list of restore points, click a restore point created before you started having the problem, and then click Next

  4. click on finish

  Note: When you perform the system restore to restore the computer to a previous state, programs and updates that you have installed are removed.

  For more information, please follow the below given link:

  How to repair the operating system and how to restore the configuration of the operating system to an earlier point in time in Windows Vista

  http://support.Microsoft.com/kb/936212/

  Method 3: you can perform a Startup Repair on your computer using your Vista DVD:

  We will have to perform the Startup Repair, boot from the Vista DVD and get RE Win and choose Startup Repair from the menu.

  1. Insert the installation disc.

  2. restart your computer.

  3. If you are prompted, press any key to start Windows from the installation disc.  Note: If your computer is not configured to start from a CD or a DVD, see the documentation provided with your computer. You may need to change your computer's BIOS settings. For more information, see BIOS: frequently asked questions.

  4. choose your language settings, and then click Next.

  5. click on repair your computer.

  6. Select the operating system you want to repair, and then click Next.

  7. in the System Recovery Options menu, click Startup Repair.

  8. once the Startup Repair tool is completed, restart your computer and check if it works very well.

  Method 4: you can also try a system restore using Vista DVD and check if it works very well.

  To restore the operating system to an earlier point in time, follow these steps:

  1. Insert the installation disc.

  2. restart your computer.

  3. If you are prompted, press any key to start Windows from the installation disc.  Note: If your computer is not configured to start from a CD or a DVD, see the documentation provided with your computer. You may need to change your computer's BIOS settings. For more information, see BIOS: frequently asked questions.

  4. choose your language settings, and then click Next.

  5. click on repair your computer.

  6. Select the operating system you want to repair, and then click Next.

  7. in the System Recovery Options menu, click System Restore.

  8. in the System Restore dialog box, click on choose a different restore pointand then click Next.

  9. in the list of restore points, click a restore point that was created before you began to meet the problem, then Next.

  10. click on Finish

  Note: when you perform the system restore to restore the computer to a previous state, programs and updates that you have installed are removed.

  For more information, please visit the below given link:

  Repairs to the system of Windows recovery environment

  http://Windows.Microsoft.com/en-us/Windows-Vista/make-system-repairs-from-the-Windows-recovery-environment-from-Windows-Vista-inside-out

  Hope this information is useful.
  Let me know if it worked.

  Concerning
  Jeremy K
  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think.

• Qosmio G40 - black screen and does not start

  A bit of water on my laptop... (bought in 2007, guaranteed on)
  I did not cut power at the time because it did not work properly...

  But, the next morning.
  Start with a black screen, fan is too much work and I have a beep.
  An and after a continuous short beep...

  I opened it and dry all (air cold & mild)... paper to remove moisture.

  but screen remains black, a beep and the fan not working too.

  Please help... What can I do?

  Hey,.

  It seems that water damged your laptop or at least some parts. In the worst cases, you need a lot of new pieces of equipment, but I don't think that an authorized service provider can help you diagnose this problem.

  On the Toshiba site, you can search for them:
  http://EU.computers.Toshiba-Europe.com > support & downloads > find an authorized service provider

  Contact them and ask for help. They will help you as much as possible. :)

• Windows load with black screen and does not start after windows updates

  Original title: load windows normally screen will not continue

  I went to my computer tower and I chose to install updates when closing.  I went back later to re - turn on my computer and now it loads to the top of the black screen that gives you 5 options. safe mode, safe mode with networking safe mode command prompt, windows loads normally and finally to load windows from last known configuration that works.  Problem is that none of these options work.  they all return me to the same screen.  Help this laptop came preloaded with Win XP Media Center edition and I can't get back to work.  IM assuming I need a XP disk support center but I can't find them anywhere! HELP PLEASE SOMEONE!

  Hi Burton089,

  Your hypothesis is right. To resolve this problem, we need to repair your installation of Windows using the Windows XP disk. We recommend that you contact the manufacturer of the laptop to check if they have the Windows recovery disk.
  See perform a repair Installation
  

  Visit our Microsoft answers feedback Forum and let us know what you think.

• U2515H, MacBook Pro 2015, Dell mDP to DP cable does not?

  Hi all

  I just bought a MacBook Pro 15 "model mid 2015." I have a Dell U2515H monitor. The cable provided by Dell is a DisplayPort / Mini DisplayPort. I used this same cable with my Macbook Air late 2011 and it worked. I tried to use the same cable with the Macbook Pro that I bought and it doesn't work. I got an HDMI cable and only that I connected to my TV and that works very well. I wonder why it does not work with the DisplayPort cable since it worked with the old Macbook Air. This new crush does not accept this type of cable? Because if not, I'll have to buy another HDMI cable :-/

  Thank you, Ralph

  Problem solved just!

  As incredible as it may seem, I realized that I was a plug in the side of the cable mini DisplayPort to the Macbook Pro!

  I thought that these cables have been designed to have a CAP that prevents this sort of thing! :-(

  I bet I wasn't the only one to do that.

• Satellite A135 black screen and does not start

  I have a Satellite A135 with windows vista and I have not used in more than a year.
  I went to use it today and it turns on but the screen is blank. I can't even see not the bios.

  I tried the usual things, connect to a monitor, removed the chip of ram from the back and tried another one, I also tried power alternative only with no luck.

  All the ideas it might be.

  Thanks for the help

  Hello

  If the BIOS page does not appear, then it s a serious question.
  Seems that the motherboard is dead.

  In my opinion, a technician should check this section first, and perhaps you will need a new

  Motherboards are parties, then perhaps it s not an option for you