Windows 8.1 boots to a black screen, I have to forcibly resart

System Specs:
2014 Macbook Pro
Intel i7 2.5 GHz Processor
Nvidia 750m Graphics Card/Intel Iris Pro?
16 CB 1600 MHz DDR3 Memory
OSX 10.9.4 Software
Inquiring about boot up to 64 bit Windows 8.1
So last night, I left my computer alone while it installed a windows update. When I came back, the apple login screen was open. This evening, I booted up to windows just fine, signed in, but quickly had to close the machine because I had to go back to my dorm. Got back, opened it up, booted up ACIV: Black Flag. Ubisoft Symbol and Abstergo Symbol display, and then the screen goes totally black, and the system stops making sound. I hard restart and attempt to reboot to windows. The spinning dots appear, disappear, screen looks like it's about to load into the windows login, goes totally dark. Hard restart again, this time I go all the way to OSX, sign in, restart from there. I reboot to windows and I am greeted by the spinning sign and a "please wait" message. It boots to a blue screen that tells me that there was a problem with the boot, gives the option to restart or browse the advanced recovery options. I browse, choose to reboot, hold down the option key, select windows and again it loads into a total black screen. Before I try again, and risk bricking my machine, does anyone know what's going on? What should I do?
Thanks, guys.

I've been manually updating the drivers via the Nvidia app. Last ones I installed were the game ready drivers for AC:U.
I fixed the problem, however. I got the reboot/fix options up again and chose to fix it using a device, selected OSX as the device and rebooted from OSX. Everything was fine from there.

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After my macbookpro is turn on, the error msg is:
Interval Since Last Panic Report: 53941 sec
Panics Since Last Report:          1
Anonymous UUID:                    AFE5FF5E-0DC7-45B6-B606-74DF8239974E
Fri Apr 11 12:10:23 2014
panic(cpu 2 caller 0x9d4c9b): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0x7fa41000 0x0a5480a2, D0, P2/4
Backtrace (CPU 2), Frame : Return Address (4 potential args on stack)
0x7f271c38 : 0x21b837 (0x5dd7fc 0x7f271c6c 0x223ce1 0x0)
0x7f271c88 : 0x9d4c9b (0xbea28c 0xc5a800 0xbf8e60 0x0)
0x7f271d28 : 0xaef608 (0x8d73c04 0x91cf004 0x100 0x16d47000)
0x7f271d78 : 0xae6601 (0x91cf004 0x100 0x7f271da8 0x9c4778)
0x7f271da8 : 0x16d79a6 (0x91cf004 0x100 0x438004ee 0x1)
0x7f271ee8 : 0xb0e2b5 (0x91cf004 0x95d3004 0x0 0x0)
0x7f271f28 : 0x9dde7c (0x91cf004 0x95d3004 0x0 0x0)
0x7f271fc8 : 0x9da55b (0x0 0x9 0x0 0x0)
0x7f272178 : 0x9dc6e7 (0x0 0x600d600d 0x7027 0x7f2721a8)
0x7f272248 : 0xc8610d (0xc1d00046 0xbeef0003 0xc1ca580 0x71)
0x7f2722e8 : 0xc86685 (0x46255000 0xc1ca580 0x14906804 0x0)
0x7f272328 : 0xc5dec3 (0x46255000 0xc1ca580 0x14906804 0x0)
0x7f272358 : 0xc85cba (0x46255000 0xc1ca580 0x14906804 0x0)
0x7f272378 : 0xc5d418 (0x46255000 0xc1ca580 0x14906804 0x0)
0x7f272398 : 0xc86630 (0x46255000 0x14906800 0x2 0x2)
0x7f2723d8 : 0xc60905 (0x46255000 0x14906800 0x0 0x14934000)
0x7f272418 : 0xc5e325 (0x46255000 0x463e7000 0x46485000 0x8e76b80)
0x7f272468 : 0xcb14e9 (0x46255000 0x463e7000 0x46485000 0x8e76b80)
0x7f2724f8 : 0xca2c9b (0x8e76b80 0x14934000 0x0 0x1)
0x7f272558 : 0xca2f02 (0x463e7000 0x463e7788 0x14934000 0x0)
0x7f2725a8 : 0xca33d6 (0x463e7000 0x463e7788 0x7f2728cc 0x7f27286c)
0x7f2728e8 : 0xca01a1 (0x463e7000 0x463e7788 0x1 0x2209aa)
0x7f272908 : 0xc6788f (0x463e7000 0x463e7788 0x14932fc0 0x507617)
0x7f272938 : 0xca1c64 (0x463e7000 0x7f272a7c 0x7f272968 0x463e7000)
0x7f272978 : 0xc6bc93 (0x463e7000 0x7f272a7c 0x7f272a7c 0x7f2729e0)
0x7f272ab8 : 0xca55d8 (0x463e7000 0x1 0x7f272bcc 0x7f272bc8)
0x7f272b68 : 0xc67fe1 (0x463e7000 0x1 0x7f272bcc 0x7f272bc8)
0x7f272be8 : 0x56da06 (0x463e7000 0x0 0x7f272e3c 0x7f272c74)
0x7f272c38 : 0x56e2a5 (0xcf6720 0x463e7000 0x9197d88 0x1)
0x7f272c88 : 0x56eb59 (0x463e7000 0x10 0x7f272cd0 0x0)
0x7f272da8 : 0x286638 (0x463e7000 0x10 0x9197d88 0x1)
0x7f273e58 : 0x21dbe5 (0x9197d60 0x9dc95a0 0x1f79e8 0x5d43)
0x7f273e98 : 0x210a86 (0x9197d00 0x0 0x9362e70 0x9753850)
0x7f273ef8 : 0x216f84 (0x9197d00 0x0 0x0 0x0)
0x7f273f78 : 0x295c57 (0x90098c8 0x0 0x0 0x0)
0x7f273fc8 : 0x2a256d (0x90098c4 0x1 0x10 0x90098c4)
      Kernel Extensions in backtrace (with dependencies):
         com.apple.GeForce(6.4.0)@0xc5c000->0xd12fff
            dependency: com.apple.NVDAResman(6.4.0)@0x96e000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x961000
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x93f000
         com.apple.nvidia.nv50hal(6.4.0)@0x15a1000->0x19b5fff
            dependency: com.apple.NVDAResman(6.4.0)@0x96e000
         com.apple.NVDAResman(6.4.0)@0x96e000->0xc5bfff
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x961000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x93f000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 9874467987760
unloaded kexts:
com.apple.driver.AppleUSBUHCI          4.2.0 (addr 0x142d000, size 0x65536) - last unloaded 168161929835
loaded kexts:
com.apple.driver.AppleHWSensor          1.9.3d0 - last loaded 29001285875
com.apple.filesystems.autofs          2.1.0
com.apple.driver.AGPM          100.12.31
com.apple.driver.AppleMikeyHIDDriver          1.2.0
com.apple.driver.AppleHDA          2.0.5f14
com.apple.driver.AppleUpstreamUserClient          3.5.7
com.apple.driver.AppleMCCSControl          1.0.20
com.apple.driver.AppleMikeyDriver          2.0.5f14
com.apple.driver.AudioAUUC          1.57
com.apple.driver.AppleIntelHDGraphics          6.4.0
com.apple.driver.AppleIntelHDGraphicsFB          6.4.0
com.apple.driver.SMCMotionSensor          3.0.1d2
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AudioIPCDriver          1.1.6
com.apple.GeForce          6.4.0
com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.0a1
com.apple.driver.AppleLPC          1.5.1
com.apple.driver.AppleGraphicsControl          2.10.6
com.apple.kext.AppleSMCLMU          1.5.2d10
com.apple.driver.AppleUSBTCButtons          201.6
com.apple.driver.AppleUSBCardReader          2.6.1
com.apple.driver.AppleIRController          303.8
com.apple.driver.AppleUSBTCKeyboard          201.6
com.apple.BootCache          31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.iokit.SCSITaskUserClient          2.6.8
com.apple.iokit.IOAHCIBlockStorage          1.6.4
com.apple.driver.AppleUSBHub          4.2.4
com.apple.driver.AppleFWOHCI          4.7.3
com.apple.iokit.AppleBCM5701Ethernet          3.0.5b8
com.apple.driver.AppleEFINVRAM          1.4.0
com.apple.driver.AppleSmartBatteryManager          160.0.0
com.apple.driver.AppleAHCIPort          2.1.7
com.apple.driver.AirPortBrcm43224          428.42.4
com.apple.driver.AppleUSBEHCI          4.2.4
com.apple.driver.AppleACPIButtons          1.3.6
com.apple.driver.AppleRTC          1.3.1
com.apple.driver.AppleHPET          1.5
com.apple.driver.AppleSMBIOS          1.7
com.apple.driver.AppleACPIEC          1.3.6
com.apple.driver.AppleAPIC          1.4
com.apple.driver.AppleIntelCPUPowerManagementClient          142.6.0
com.apple.security.sandbox          1
com.apple.security.quarantine          0
com.apple.nke.applicationfirewall          2.1.14
com.apple.driver.AppleIntelCPUPowerManagement          142.6.0
com.apple.iokit.IOBluetoothSerialManager          2.4.5f3
com.apple.iokit.IOSerialFamily          10.0.3
com.apple.driver.DspFuncLib          2.0.5f14
com.apple.driver.AppleProfileReadCounterAction          17
com.apple.driver.AppleProfileTimestampAction          10
com.apple.driver.AppleProfileThreadInfoAction          14
com.apple.driver.AppleProfileRegisterStateAction          10
com.apple.driver.AppleProfileKEventAction          10
com.apple.driver.AppleProfileCallstackAction          20
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.iokit.IOFireWireIP          2.0.3
com.apple.iokit.IOSurface          74.2
com.apple.iokit.IOAudioFamily          1.8.3fc2
com.apple.kext.OSvKernDSPLib          1.3
com.apple.driver.AppleHDAController          2.0.5f14
com.apple.iokit.IOHDAFamily          2.0.5f14
com.apple.iokit.AppleProfileFamily          41
com.apple.driver.IOPlatformPluginFamily          4.7.0a1
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleBacklightExpert          1.0.1
com.apple.driver.AppleSMC          3.1.0d5
com.apple.nvidia.nv50hal          6.4.0
com.apple.NVDAResman          6.4.0
com.apple.iokit.IONDRVSupport          2.2.1
com.apple.iokit.IOGraphicsFamily          2.2.1
com.apple.driver.BroadcomUSBBluetoothHCIController          2.4.5f3
com.apple.driver.AppleUSBBluetoothHCIController          2.4.5f3
com.apple.iokit.IOBluetoothFamily          2.4.5f3
com.apple.iokit.IOSCSIBlockCommandsDevice          2.6.8
com.apple.iokit.IOUSBMassStorageClass          2.6.7
com.apple.driver.AppleUSBMultitouch          207.7
com.apple.iokit.IOUSBHIDDriver          4.2.0
com.apple.driver.AppleUSBMergeNub          4.2.4
com.apple.driver.AppleUSBComposite          3.9.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          2.6.8
com.apple.iokit.IOBDStorageFamily          1.6
com.apple.iokit.IODVDStorageFamily          1.6
com.apple.iokit.IOCDStorageFamily          1.6.1
com.apple.driver.XsanFilter          402.1
com.apple.iokit.IOAHCISerialATAPI          1.2.6
com.apple.iokit.IOSCSIArchitectureModelFamily          2.6.8
com.apple.iokit.IOFireWireFamily          4.2.6
com.apple.iokit.IOUSBUserClient          4.2.4
com.apple.iokit.IOAHCIFamily          2.0.6
com.apple.iokit.IO80211Family          320.1
com.apple.iokit.IONetworkingFamily          1.10
com.apple.iokit.IOUSBFamily          4.2.4
com.apple.driver.AppleEFIRuntime          1.4.0
com.apple.iokit.IOHIDFamily          1.6.6
com.apple.iokit.IOSMBusFamily          1.1
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          6
com.apple.driver.DiskImages          289.1
com.apple.iokit.IOStorageFamily          1.6.3
com.apple.driver.AppleACPIPlatform          1.3.6
com.apple.iokit.IOPCIFamily          2.6.5
com.apple.iokit.IOACPIFamily          1.3.0
Model: MacBookPro6,2, BootROM MBP61.0057.B0C, 2 processors, Intel Core i7, 2.66 GHz, 4 GB, SMC 1.58f17
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.10.131.42.4)
Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: Hitachi HTS545050B9SA02, 465.76 GB
Serial ATA Device: MATSHITADVD-R   UJ-898
USB Device: Hub, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: Internal Memory Card Reader, 0x05ac (Apple Inc.), 0x8403, 0xfa130000 / 5
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0236, 0xfa120000 / 4
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 3
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8218, 0xfa113000 / 8
USB Device: Hub, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0xfd120000 / 4
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8507, 0xfd110000 / 3
What is the reason causing it to black screen n shut down?
My mackbook info:
Hardware Overview:
Model Name:          MacBook Pro
Model Identifier:          MacBookPro6,2
Processor Name:          Intel Core i7
Processor Speed:          2.66 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache (per core):          256 KB
L3 Cache:          4 MB
Memory:          4 GB
Processor Interconnect Speed:          4.8 GT/s
Boot ROM Version:          MBP61.0057.B0C
SMC Version (system):          1.58f17
Serial Number (system):          W8020YL3AGW
Hardware UUID:          A70823EC-3897-57A0-BD2B-0F35CF62FA3F
Sudden Motion Sensor:
State:          Enabled

nana4design wrote:
panic(cpu 2 caller 0x9d4c9b): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0x7fa41000 0x0a5480a2, D0, P2/4
Backtrace (CPU 2), Frame : Return Address (4 potential args on stack)
0x7f271c38 : 0x21b837 (0x5dd7fc 0x7f271c6c 0x223ce1 0x0)
0x7f271c88 : 0x9d4c9b (0xbea28c 0xc5a800 0xbf8e60 0x0)
0x7f271d28 : 0xaef608 (0x8d73c04 0x91cf004 0x100 0x16d47000)
0x7f271d78 : 0xae6601 (0x91cf004 0x100 0x7f271da8 0x9c4778)
0x7f271da8 : 0x16d79a6 (0x91cf004 0x100 0x438004ee 0x1)
0x7f271ee8 : 0xb0e2b5 (0x91cf004 0x95d3004 0x0 0x0)
0x7f271f28 : 0x9dde7c (0x91cf004 0x95d3004 0x0 0x0)
0x7f271fc8 : 0x9da55b (0x0 0x9 0x0 0x0)
0x7f272178 : 0x9dc6e7 (0x0 0x600d600d 0x7027 0x7f2721a8)
0x7f272248 : 0xc8610d (0xc1d00046 0xbeef0003 0xc1ca580 0x71)
0x7f2722e8 : 0xc86685 (0x46255000 0xc1ca580 0x14906804 0x0)
0x7f272328 : 0xc5dec3 (0x46255000 0xc1ca580 0x14906804 0x0)
0x7f272358 : 0xc85cba (0x46255000 0xc1ca580 0x14906804 0x0)
0x7f272378 : 0xc5d418 (0x46255000 0xc1ca580 0x14906804 0x0)
0x7f272398 : 0xc86630 (0x46255000 0x14906800 0x2 0x2)
0x7f2723d8 : 0xc60905 (0x46255000 0x14906800 0x0 0x14934000)
0x7f272418 : 0xc5e325 (0x46255000 0x463e7000 0x46485000 0x8e76b80)
0x7f272468 : 0xcb14e9 (0x46255000 0x463e7000 0x46485000 0x8e76b80)
0x7f2724f8 : 0xca2c9b (0x8e76b80 0x14934000 0x0 0x1)
0x7f272558 : 0xca2f02 (0x463e7000 0x463e7788 0x14934000 0x0)
0x7f2725a8 : 0xca33d6 (0x463e7000 0x463e7788 0x7f2728cc 0x7f27286c)
0x7f2728e8 : 0xca01a1 (0x463e7000 0x463e7788 0x1 0x2209aa)
0x7f272908 : 0xc6788f (0x463e7000 0x463e7788 0x14932fc0 0x507617)
0x7f272938 : 0xca1c64 (0x463e7000 0x7f272a7c 0x7f272968 0x463e7000)
0x7f272978 : 0xc6bc93 (0x463e7000 0x7f272a7c 0x7f272a7c 0x7f2729e0)
0x7f272ab8 : 0xca55d8 (0x463e7000 0x1 0x7f272bcc 0x7f272bc8)
0x7f272b68 : 0xc67fe1 (0x463e7000 0x1 0x7f272bcc 0x7f272bc8)
0x7f272be8 : 0x56da06 (0x463e7000 0x0 0x7f272e3c 0x7f272c74)
0x7f272c38 : 0x56e2a5 (0xcf6720 0x463e7000 0x9197d88 0x1)
0x7f272c88 : 0x56eb59 (0x463e7000 0x10 0x7f272cd0 0x0)
0x7f272da8 : 0x286638 (0x463e7000 0x10 0x9197d88 0x1)
0x7f273e58 : 0x21dbe5 (0x9197d60 0x9dc95a0 0x1f79e8 0x5d43)
0x7f273e98 : 0x210a86 (0x9197d00 0x0 0x9362e70 0x9753850)
0x7f273ef8 : 0x216f84 (0x9197d00 0x0 0x0 0x0)
0x7f273f78 : 0x295c57 (0x90098c8 0x0 0x0 0x0)
0x7f273fc8 : 0x2a256d (0x90098c4 0x1 0x10 0x90098c4)
      Kernel Extensions in backtrace (with dependencies):
         com.apple.GeForce(6.4.0)@0xc5c000->0xd12fff
            dependency: com.apple.NVDAResman(6.4.0)@0x96e000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x961000
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x93f000
         com.apple.nvidia.nv50hal(6.4.0)@0x15a1000->0x19b5fff
            dependency: com.apple.NVDAResman(6.4.0)@0x96e000
         com.apple.NVDAResman(6.4.0)@0x96e000->0xc5bfff
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x961000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x93f000
You have got a Mid 2010 15-inch MacBook Pro, and the log shows that your NVIDIA GPU is damaged.
Mid 2010 15-inch MacBooks Pro come with a defective NVIDIA GPU that may cause unexpected restarts, black screens, kernel panics... See > http://support.apple.com/kb/TS4088
Apple is repairing all these MacBooks Pro for free if they were purchased less than three years ago, so make a backup of your files on an external drive with Time Machine and take your computer to an Apple Store or reseller.

Iphone has the black screen.I have to do a restart.

I´ve iphone 4s ios 6.0 and 2x every day the phone has the black screen.I have to do a restart.Could you help me?, I´ve iphone 4s ios 6.0 and 2x every day the phone has the black screen.I have to do a restart.Could you help me?

I´ve iphone 4s ios 6.0 and 2x every day the phone has the black screen.I have to do a restart.Could you help me?, I´ve iphone 4s ios 6.0 and 2x every day the phone has the black screen.I have to do a restart.Could you help me?

Iphone 4s is working for example can play,music recieve texts ,calls ect but has black screen and have tried the force shutdown method but still can see what im doing on the screen

iphone 4s is working for example can play,music recieve texts ,calls ect but has black screen and have tried the force shutdown method but still can see what im doing on the screen

Did anything happen to prior to your phone acting this way? It sounds like your screen is dead, but it is hard to say without knowing what what the cause.
1) was this a gradual problem? Did the phone screen start dimming a couple months ago and now has degraded or after some event (known or unknown to you), the phone started behaving this way.
2) Can you give more specifics on the problem? You said you have a black screen, but also you can see what you're doing on screen. Is the screen just really dim? Is the screen completely black? Does anything else besides attempting to reset the device cause it to flash white?

Sending videos from iphone 4s to pc. Why do I get black screen but have sound

Sending videos from iphone 4s to pc. Why do I get black screen but have sound?

Ok I checked and unchecked the playback via camera yesterday and I got black screen both times.
I could delete the imovie prefs when I go over there today.
I'll try another FW cable but it worked perfectly for importing but what the heck I've got one I'll try it.
Yes camera was set to play and not record.
Plenty of free space -- 131 GB.
I'm pretty sure it's in NTSC DV format, but it's someone else's computer so it could have been changed by someone screwin' around not knowing what they're doing making changes.
PowerMac FW800 (G4), iBook 1.42 G4 SuperDrive Mac OS X (10.4.10)

IMac keep shutting down black screen then have to hold power button down then turn it on again i did this 4 times in all of a period of 5 minutes what to do ??

iMac keep shutting down black screen then have to hold power button down then turn it on again i did this 4 times in all of a period of 15 minutes what to do ??

Hmm. The problem still may be the RAM - Apple buys the RAM it puts in its machines from third-party vendors (usually Hynix) so it could be a RAM problem.
There are a couple of things that you can do yourself before taking your machine into an Apple Store or an AASP... download and run an application named Rember that will run a RAM test for you - let it run for a couple of hours or even overnight. If it turns out that your RAM is faulty, Rember will let you know. If it is faulty, then you have a couple of options - replace the RAM yourself or (particularly if you're under warranty still) take the machine to an Apple Store or AASP and have them replace the RAM.
If Rember finds no fault with the RAM, then you'll need to take it into an Apple Store/AASP and get a free diagnosis on the machine. Three beeps do usually indicate faulty RAM, but if it tests good with Rember you likely have another problem - it could be something as simple as the RAM, somehow, not seated correctly or signs of another hardware problem.
Run Rember first... call back with results.
Good luck,
Clinton

Lent someone mag safe lead and now mac powered but black screen! have reset battery but still nothing. Help please?

lent someone mag safe lead and now mac is powered but black screen! have reset battery and taken lead out for a few minutes and replugged but still nothing. Help please?

try pram reset
http://support.apple.com/kb/ht1379
if not try recovery mode
http://support.apple.com/kb/ht4718
read
http://www.macworld.com/article/2018853/when-good-macs-go-bad-steps-to-take-when -your-mac-wont-start-up.html

Windows 7 partition won't boot, hangs on black screen / blinking cursor

Hi all,
I just installed windows 7 home premium x64 on a new 100gb partition I made first with bootcamp assistant and then simply with disk utility the second time. I can't get windows to load however, it just sits forever at the black screen with blinking cursor at top left.
I have tried the Bootrec.exe /Fixmbr
bootrec.exe /Fix boot
Bootrec.exe /rebuildbcd
fix that is floating around to no avail. The rebuildbcd command yields 0 copies of windows installed but still ends successfully.
i have spent the majority of my day trying to get this to work and have no leads left anymore. Please help!

I HAVE SOLVED MY PROBLEM! Windows is running excellently on my Bootcamp partition.
Taking a few steps back: I used Bootcamp to remove the disk utility partition, then remade it also using boot camp assistant. Ran the windows install, and this time instead of hanging endlessly on black or going back to step 1 after restarting, the install went all the way. I had to restart once when the computer hung on "starting windows" but it got back on track right after this.
I think I must've fudged something with Disk utility before.
Thank you so much for your help!

HT1846 Windows take a long time to boot up with black screen and a blinking cursor. Help anyone?

Im running 64-bit windows 7 on my late 2012 mac mini. When it boots, it takes around few minutes to boot to windows. During the few minutes, it shows a black screen with a blinking cursor at the top left. Is there any ways to remove it and go straight to windows?

Hello cncprogrammer,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand your HP Pavilion HPE h8-1360t Desktop computer. I am providing you with a link to a great proactive post by @Daniel_Potyrala titled How to speed up system boot time and the performance, where he offers some great advise on how to deal with the very issue you are posting about. I would advise you give it a thorough read and apply as many steps as you can to speed up your computer.
Please re-post if you require additional support. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

Windows XP won't install. Black screen with cursor!

Ok, so I originally partitioned the HD using 'Boot Camp Assistant". I had no problems installing Windows. When I plugged in the Mac OS X install dvd to install the drivers it always crashed. so, I went back into 'Boot Camp Assistant', delete and repartitioned the HD. Now when I try to reinstall Windows a black screen pops up with a blinking, white cursor at the upper-left-hand corner of the screen.
I've tried:
1. Repartitioning the HDD at least 5 times.
2. Restarting and holding down option and selecting the windows dvd.
3. Resetting a bunch of times.
4. Ejecting and inserting windows cd over and over again.
5. Renaming partitions.
6. Hitting space bar continuously upon restart.
Are there any remedies for this?
Also, after partitioning, even without installing Windows... when resetting and holding down the 'option' button.... should it still show one partition or both?
Message was edited by: enrique_david

Well, I finally got it to work! What I did was turn off the computer, unplugged the cord from the back of the computer (not from the outlet), let it sit for 30 seconds, plug it back in and restart your computer. I got the tip from this article http://support.apple.com/kb/TA24192. Make sure you click on 'Reset the NVRAM'.

Windows 8.1 boots to a black screen, I have to forcibly resart

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