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Windows 7: Blank screen after login (sometimes)

22 Sep 2015   #1
tommy2k8

Windows XP
 
 
Blank screen after login (sometimes)

I cannot log in to Windows 7 Professional - all the system does is hang after initial login (after the password has been entered.) However, I can log in using Safe Mode with Networking (but not Safe Mode!). I did a chkdsk /f /r - it reported and repaired corrupt index entries. This let me log in normally but after a while, after a restart, same thing happened.
Disk is fine, Linux (I booted with a Live CD) reports that the file system is not clean.
I booted back into Safe Mode with Networking, ran sfc /scannow 3 times, said everything was working fine, no errors; ran Dism /Online /Cleanup-image /ScanHealth which yeilded the attached log file (RestoreHealth however doesn't work, presumably because the system I am working on is not Windows 8.)
I am running out of ideas!




Attached Files
File Type: log CheckSUR.log (1.4 KB, 0 views)
My System SpecsSystem Spec
.
22 Sep 2015   #2
GokAy

Windows 7 Ultimate x64 SP1
 
 

See through this list:
- Boot with Last Known Good Configuration (F8 menu)
- Restore to a prior date (System Restore) - System Restore
- Scan for malware (Malwarebytes Anti-Malware free)
- Try a clean startup Troubleshoot Application Conflicts by Performing a Clean Startup
- Check if explorer.exe is running and start from CTRL+ALT+DEL (task manager - new task)
- Verify in registry: HKEY_Local_Machine\Software\Microsot\Windows NT\Current Version\Winlogon to make sure 'shell = explorer.exe'
- Follow SFC /SCANNOW Command - System File Checker
- Check Disk - Disk Check
- Try loading defaults in BIOS
- Update all your drivers
- Check out the interesting solutions in black screen with cursor only [Solved] - Cursor - Windows 7
My System SpecsSystem Spec
23 Sep 2015   #3
tommy2k8

Windows XP
 
 

Quote   Quote: Originally Posted by GokAy View Post
See through this list:
- Boot with Last Known Good Configuration (F8 menu) - The option isn't there. All I get is Safe Mode, Safe Mode with Networking, Safe Mode with Command Prompt, and Start Windows Normally.

- Restore to a prior date (System Restore) - System Restore - I did this, but System Restore completed unsuccessfully

- Scan for malware (Malwarebytes Anti-Malware free) - all clean

- Try a clean startup Troubleshoot Application Conflicts by Performing a Clean Startup

- Check if explorer.exe is running and start from CTRL+ALT+DEL (task manager - new task) - did that.

- Verify in registry: HKEY_Local_Machine\Software\Microsot\Windows NT\Current Version\Winlogon to make sure 'shell = explorer.exe' - affirmative

- Follow SFC /SCANNOW Command - System File Checker

- Check Disk - Disk Check

- Try loading defaults in BIOS - the machine won't let me load the BIOS!

- Update all your drivers - All up to date

- Check out the interesting solutions in black screen with cursor only [Solved] - Cursor - Windows 7
- will do this tomorrow.

Additions:

There are the odd occasions when I can boot normally but not that often.
I ran the Lenovo diagnostics - black screen occured while doing memory test twice. However, I did the Windows Memory Diagnostics and there were no errors detected. I tried to test doing Memtest, but the laptop kept rebooting, it wouldnt even start Memtest!
My System SpecsSystem Spec
.

23 Sep 2015   #4
GokAy

Windows 7 Ultimate x64 SP1
 
 

Memtest or Memtest86+? Should be 86+
RAM - Test with Memtest86+

It is indeed different that you don't get black screen always.

How does it not let you access BIOS? Error/nothing happens/no keys to press shown/etc?
My System SpecsSystem Spec
24 Sep 2015   #5
tommy2k8

Windows XP
 
 

This is very strange.
Won't let me run MemTest (CD or USB) or anything else - just automatically goes to Startup Repair!
F1 to get into the BIOS does the same thing so does F12 to boot from a temporary external device.
My System SpecsSystem Spec
24 Sep 2015   #6
GokAy

Windows 7 Ultimate x64 SP1
 
 

Are you sure keyboard is working properly? Do you get any feedback on screen upon F1 or F12? Is this a laptop or desktop?
My System SpecsSystem Spec
24 Sep 2015   #7
tommy2k8

Windows XP
 
 

Laptop and yes the keyboard is working properly, as I can press Enter to get into Startup Repair
My System SpecsSystem Spec
24 Sep 2015   #8
GokAy

Windows 7 Ultimate x64 SP1
 
 

Oh, just noticed you said "blank" not "black"
Tried a clean startup? Troubleshoot Application Conflicts by Performing a Clean Startup
What security software are you running?

I will ask others about the BIOS and Boot Menu.
My System SpecsSystem Spec
24 Sep 2015   #9
rvcjew

7 Pro x64, 10 Pro x64
 
 

Tommy what model is this laptop some lenovo have a novo button that is pressed while the pc is off to get a menu for boot order, recovery, and bios. So please if you do not know the model take a picture of it open and we can figure it out based on that.
My System SpecsSystem Spec
25 Sep 2015   #10
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Tommy mate I think it might be worth a run with this Kaspersky Rescue Disk 10 it will boot and scan on it's own maybe something has got into the BIOS.

Another one that can be tried to is this one same set up Index of /rescue_cd/

- there are others
My System SpecsSystem Spec
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 Blank screen after login (sometimes)




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