Black screen on startup - Windows 7 64 bit

[cardshark950]

When I turn on my PC, after the Windows is starting up screen appears, sometimes Windows doesn't actually start. A black screen appears and I have to reboot the PC. Sometimes I have to do this 4 or 5 times before Windows actually loads. Also, sometimes after I enter my password on the logon screen, a black screen appears instead of the desktop. When I get into the desktop after rebooting, this error message appears:


Windows has recovered from an unexpected shutdown
Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 2057

Additional information about the problem:
BCCode: 124
BCP1: 0000000000000000
BCP2: FFFFFA80076998F8
BCP3: 0000000000000000
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\122610-10842-01.dmp
C:\Users\\AppData\Local\Temp\WER-19749-0.sysdata.xml

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C:\Windows\system32\en-US\erofflps.txt The error says blue screen, but no blue screen actually appears, only a black screen with nothing on it does. There are some days where it starts up as normal on the first attempt without a black screen, but that's not very often. I've persevered with this for a while, but it's becoming more frequent, so I thought I'd see if you guys had any ideas. Cheers guys :)

[Spaceboy]

My only guess would be to try a repair install, although you may want to check some of the hardware out by using tools such as memtest, and furmark.

[cinek]

after the login screen, when the black (or any other) screen appears, try CTRL + ALT + DEL to get to the task manager. Look if explorer.exe is running & if it is nothing is happening, end the process and start a new task - explorer.exe

this will not fix the issue, but maybe you won't have to reboot the pc