Lenovo Ideapad Y560 "black screen in boot up after windows 7 logo"

abdomar528 · 24 Sep 2012

I need help and suggestions on what to do with this black screen crisis. Mine is a little different that others. so sorry if this is a repeated thread. ive looked everywhere, and no one has the issue when they have dual boot.

laptop description:
I have dual boot on my laptop with windows 7 ultimate 32 bit and windows 7 home premium 64 bit. the home premium came pre installed on the laptop and the ultimate version i installed later dual boot (i needed some capabilities that home premium doesn't have).

Problem: I cannot see anything on my screen after windows logo while booting up my laptop bcz of the black screen after the windows logo. When i boot into WINDOWS 7 HOME PREMIUM. i hear windows logon screen notification noise but see nothing! oddly enough even my built in webcam logs me in with VeriFace software with my face, passwordless! ALSO my laptop boots fine with windows 7 ultimate and i can see everything, and it works great! i need the other version to WORK cause my life is in that other version of windows. i cannot factory restore!!!

What i have tried: the keyboard is also unresponsive, bcz i held down a bunch of keys to see if it makes the beep noise. I closed the laptop lid to see if it goes into hibernation and waited 3 mins to see if it still does, so that when i open it i can see everything (it has worked before). nothing. i rebooted a bunch of times even with a second screen attached, tried to guess switch into projector mode with my function key and switch screen/projector button. i have also done a power cycle. i think the registry is screwed, or maybe the graphics card drivers are ruined. have not done a registry repair through the other windows version (doing that next). i have defragged both partitions for both of the windows 7 versions through the one that works.

What may have caused it: the last time i used home premium, i rebooted so that i can use the ultimate version (for the extra capabilities). i was not watching and it booted up in home premium, and the built in cam is so fast that i merely looked at the laptop and it logged me in. i was being unpatient, bcz you have to wait for the lenovo programs to load before you can restart. so i forced shut down (very bad idea) by holding the power button and booted up in ultimate finally while watching. This is first time i've done this mistake, which has now left my laptop half usable.

now i want to use the home premium version, but this black screen is happening after the windows logo.

Ztruker · 24 Sep 2012

Sounds like a corrupted file system, so try running chkdsk.

How to run System File Checker (SFC) or chkdsk from the Recovery Console

Boot your Vista or Windows 7 installation DVD
When you see "Press any key to boot from CD or DVD", press Enter
At the "Install Windows" screen, click on Repair your computer at lower left
At the System Recovery Options screen, make note of the drive letter assigned to your boot drive (normally C:) and click Next
At the Chose a Recovery Tool window, click on Command Prompt. You will be sitting at X:\Sources directory
Run SFC or chkdsk
- If you did not note the drive letter of your boot disk, you can enter bcdedit and look at the osdevice line to see what it is.
- For sfc, type sfc /scannow /offbootdir=c:\ /offwindir=c:\windows and press Enter (use the letter from above)
- For chkdsk, type chkdsk c: /r and press Enter (use the letter from above).

Let either run to completion undisturbed.