

Black screen when booting windows 7
#16
Posted 13 March 2013 - 12:40 PM


#17
Posted 13 March 2013 - 04:33 PM

#18
Posted 13 March 2013 - 06:37 PM

from desktop windows key then type
cmd
new window will open, it will probably show command prompt on left if not click applications on right.
now right click the cmd prompt and click on options shown below, run as admin
(NOTE you may wish to select another option before for instance pin to start or taskbar etc for future use.)
at the cmd prompt type
cd/
to get to C prompt then type
bcdedit (no spaces)
when that window opens, right click on top bar, click edit, click select all, click edit again, click copy and paste results please on reply.
2. While you are waiting for a response to this, and going back to post 2, if windows 7 is the default operating system, then the F8, and where you used LKG before, please go back there and this time select
Disable Driver Signature Enforcement.
TRY selecting that please, I do not expect it really to work, as I think the files are corrupted and preventing explorer exe from loading., but please try it.
Edited by Macboatmaster, 13 March 2013 - 07:10 PM.
#19
Posted 13 March 2013 - 08:25 PM

© 2012 Microsoft Corporation. All rights reserved.
C:\Windows\system32>cd/
C:\>bcedit
'bcedit' is not recognized as an internal or external command,
operable program or batch file.
C:\>bcdedit
Windows Boot Manager
--------------------
identifier {bootmgr}
device partition=\Device\HarddiskVolume1
description Windows Boot Manager
locale en-us
inherit {globalsettings}
default {default}
resumeobject {c937cae5-6a22-11e2-b31f-e12d95298c68}
displayorder {default}
{current}
toolsdisplayorder {memdiag}
timeout 30
Windows Boot Loader
-------------------
identifier {default}
device partition=F:
path \windows\system32\winload.exe
description Windows 7
locale en-us
inherit {bootloadersettings}
osdevice partition=F:
systemroot \windows
resumeobject {c937cae9-6a22-11e2-b31f-e12d95298c68}
nx OptIn
detecthal Yes
Windows Boot Loader
-------------------
identifier {current}
device partition=C:
path \Windows\system32\winload.exe
description Windows 8
locale en-US
inherit {bootloadersettings}
recoverysequence {c937cae7-6a22-11e2-b31f-e12d95298c68}
integrityservices Enable
recoveryenabled Yes
allowedinmemorysettings 0x15000075
osdevice partition=C:
systemroot \Windows
resumeobject {c937cae5-6a22-11e2-b31f-e12d95298c68}
nx OptIn
bootmenupolicy Standard
C:\>
#20
Posted 13 March 2013 - 08:31 PM

#21
Posted 13 March 2013 - 09:26 PM

2. When the disc loads, click the option Repair Your Computer
3. Presuming it finds the windows installation, as I think it did before, proceed to the advanced options and command prompt
4. As you know that opens on the prompt
X:\Sources:>
that of course is the ramdrive created for the purpose of the repair, so it is no use issuing any chkdsk command on there, and indeed it would not run.
5. The Recovery Environment, often changes drive letters., therefore it does not necessarily mean that Windows 7 is now on the drive lettered F as it was in bcdedit and disk management.
6. Ascertain the drive letter by issuing the command as shown in the explanation below
It should be noted that when you boot into the Windows 7 Recovery Environment the drive letter for your Windows installation may not be the same. For example, if your Windows installation is normal on the C: drive, it may not be located at the D: drive. To determine what drive letter your Windows installation is located on, you can type this command press enter:
bcdedit | find "osdevice"
Note please the quotes are typed
then when you have that, check it by issuing the cmd, to change from the ramdrive on X to the drive that is indicated that was lettered F eg.
F: or whatever it is now lettered.
Then when on that drive issue the command
chkdsk /f
and follow prompts from that command
I am signing off - back about 1600 UK time.
#22
Posted 14 March 2013 - 04:43 AM

#23
Posted 14 March 2013 - 07:29 AM

What now
at the X prompt of the ram drive type
sfc /scannow /offbootdir=d:\ /offwindir=d:\windows
changing d for the drive letter allocated for windows 7 as before
#24
Posted 14 March 2013 - 11:37 AM

#25
Posted 14 March 2013 - 01:56 PM

I think it worthwhile trying the system restore, as you have the dual boot, the restore of 7, if there is a restore point SHOULD restore to the correct dual boot
I do have a doubt, in view of what I have seen so far, if indeed it will find any restore points.
#26
Posted 14 March 2013 - 04:44 PM

#27
Posted 14 March 2013 - 05:28 PM

I do have a doubt, in view of what I have seen so far, if indeed it will find any restore points.
What backup/ system image, do you have please
I am not looking to a reinstall, but just in case, any next steps go haywire
#28
Posted 14 March 2013 - 09:27 PM

#29
Posted 14 March 2013 - 09:39 PM

If it were me, I would create a full image, an image is a backup, but a backup is not necessarily of course an image.
In other words I would make a full system image of the computer using something like TODO free backup/image or the utility in windows 8 - titled windows 7 file recovery and repair disc
When you have done that, as a first step, reinsert the dvd, and try startup repair, it only fixes so many faults on one run, so if it does report problems were found and repaired, and it still will not boot, try it again.
It will also ;provide you with a report of the problems - hopefully
Signing off - goodnight.
#30
Posted 15 March 2013 - 09:08 AM

sfc /scannow /offbootdir=d:\ /offwindir=d:\windows
Any important user files (files you have created) should be copied on external media just in case !
Have you tried running offline sfc command when booted to Windows 8 ?
You have to put correct drive-letter for Windows 7 partition !
See drive-letter for Win 7 in File Explorer.
------------------------------------------------------------------
As a last resort if sfc is not working
(should work and can be run several times until no errors reported)
the saved registry files in Win7\windows\system32\config\RegBack
can solve maybe the problem if other system files (kernel, drivers) are intact.
Registry files can be copied
from
Win7drive\windows\system32\config\RegBack
to
Win7drive\windows\system32\config\
But first make a new folder say "MyRegistryFiles" and copy all registry files
from Win7drive\windows\system32\config to MyRegistryFiles (you can restore later if needed).
Please note the date of registry files, if they are rather old you will loose all programs installed since then (will loose the capability to launch but not the files installed on disk)
You can later reinstall programs you need.
Edited by boyans, 15 March 2013 - 09:19 AM.
Similar Topics
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users
As Featured On:






