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Windows 7: Black Screen w/ Cursor - Dual Boot Hyper-V R2

26 Jul 2010   #1

Windows 7 Ultimate
Black Screen w/ Cursor - Dual Boot Hyper-V R2

I'll try to make this post clear as I desperately need help. Sorry if I appear terse.

BACKGROUND: System is a desktop with Win 7 Ultimate x64 RTM on SBS 2008 Domain Network. It has worked almost flawlessly since Aug 2009. Dual boots w/ Hyper-V Server R2 (installed prior to Win 7). In boot manager, Hyper-V is E:\ while Win 7 is F:\.

SYMPTOM: I'm getting the oft-described "Black Screen of Death" that started after I did a BIOS update. The update changed my HDD controller from RAID to IDE and I let the computer boot w/o changing it back (I changed it back to RAID when Windows didn't boot). This obviously caused corruption in the MBR. After running repairs (see below), I can now boot into Hyper-V Server R2 with no problems, but Windows 7 makes it to where I should see the log in screen, but only the black screen w/ cursor appears. Here are the particulars:
  • Ctl-Alt-Del causes the busy pointer to momentarily appear, then nothing on further attemps.
  • Ctl-Shift-Esc does nothing
  • Win-P causes the Projector screen to appear. Choosing any option changes nothing.
  • All Safe Modes and Last Known Good boot to same black screen.
  • No previous system images available (probably due to Dual Boot configuration)
  • No other F8 options do anything.
ATTEMPTED REPAIRS: I booted numerous times from the Install disk and ran the tools on it. The System Repair fixed several things including MBR corruption and Registry repair. The last several times it comes up w/ no repairs and tells me the O/S booted successfully. I have also used the boot editors (bcdedit.exe, etc.), which tell me all is well in the MBR.

I'm stumped, and after several days of researching I'm almost desperate enough to do a clean install. However, I almost wonder if Windows is actually loading, but is masked behind the black screen. After Ctl-Alt-Del, I typed in my password, then saw HDD activity like Windows was loading. I also wonder if the Hyper-V R2 is the culprit after the MBR repairs. I thought both systems used the same boot manager, but maybe Hyper-V (which has a lower drive letter) doesn't play w/ Win 7.

Sorry if this is too long and I appreciate any help you can offer.

My System SpecsSystem Spec
09 Aug 2010   #2

windows 7


I too also have this problem. I upgraded awhile back from vista 64bit to seven 64bit. Recently in an attempt to fix my 30 second welcome screen hang. I went into msconfig and checked use original boot config. Big mistake... Now whenever I boot I get a black screen with my mouse cursor. I can't alt crt delete. I've tried all the options in the F8 menu and I even burned a windows 7 recovery disc. When i boot from the disc I get an error saying its not compatible! even though im running windows 7 64bit I'm guessing its reading my os as vista 64bit? What should I do! I'm really out of options here If I reformat I lose all my data that I've achieved over the past year. I'm a musician and without my desktop I can't mix my music Please share any knowledge you have on ways I can fix this.

My System SpecsSystem Spec
09 Aug 2010   #3

windows 7

bump I really need some insight here please.
My System SpecsSystem Spec

09 Aug 2010   #4

Windows 7 Professional x64

Make sure you created a 64-bit disc:

I suspect you disabled your video card driver or something. In the Startup tab of msconfig, make sure all items are checked, for the time being.
My System SpecsSystem Spec
09 Aug 2010   #5

windows 7

I fixed it! I switched out the ata cables and booted from the recovery disc. Then restored my pc and it worked! woot!
My System SpecsSystem Spec
09 Aug 2010   #6

Windows 7 Professional x64

Thanks for the report!

Glad it's all figured out...don't hesitate to post if you need anything else.
My System SpecsSystem Spec

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