Solved Can't figure out why Windows 7 suddenly won't start normally

August 25, 2015 at 05:06:33
Specs: W7, DualCore

Suddenly, Windows7 won't start and I can't figure out the cause.

Symptoms:
- System boots, it reaches the welcome screen where message "Please wait" is displayed.
- After a few tens of seconds the screen turns black
- After a few tens of seconds with the black screen, it goes back to the welcome screen displaying same message, and then it goes to the black screen again.

This cycle repeats maybe 10 times or more, then it reboots, and when the welcome screen is reached, the following message is displayed:

"The System Event Notification Service failed the logon.
The remote procedure call failed and did not execute."

I unplugged all peripherals and USB devices, including printer and mouse and tried again, but same result.

But in Safe Mode, it starts without problems.


Where should I look to figure out the problem..?


See More: Cant figure out why Windows 7 suddenly wont start normally

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✔ Best Answer
August 27, 2015 at 07:52:46
Thanks, I could finally figure it out.
I did a scan with Malwarebytes Anti-Malware and with AdwCleaner and some trojans were found. Jeez, I can't believe that was the cause...


#1
August 25, 2015 at 05:45:45
Run this.

How to use a Lazesoft Windows Recovery CD or USB device to fix the boot problems if your Windows operating system does not start correctly
http://www.lazesoft.com/fix-boot-pr...
"It is very common for PC users to be faced with a Windows crash. When this happens, the dreaded 'Blue Screen of Death' pops up, or your PC has a black screen and can not boot or start up"

Lazesoft Recovery Suite Home Edition
http://www.softpedia.com/get/System...
http://www.lazesoft.com/lazesoft-re...
Tutorials
http://www.lazesoft.com/guide.html
Screenshot ( SS )
http://i.imgur.com/c9viJO4.gif
http://i.imgur.com/DdozUxq.gif
How to Boot a Computer from a Lazesoft Recovery USB Device
http://www.lazesoft.com/create-a-bo...


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#2
August 25, 2015 at 06:45:22
Hi,

I don't know if it helps somehow, but I uploaded the Windows Logs files in Event Viewer here:
https://www.mediafire.com/folder/w7...

It's all the activity for just one day.


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#3
August 25, 2015 at 08:51:10
Have you tried selecting the Last Known Good Configuration after pressing F8? Did you install any updates or programs right before the boot issues started?

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#4
August 25, 2015 at 13:43:35
Procedures laid out by JohnW should help you , even Last Known Good Configuration, but if you need another option, you can launch System Restore from Safe Mode which will roll back system files and registry to a prior time when all was working well.
As always, report back results in case others feel that you may need further testing for cleaning of the primary cause (possibly malware). Include any memory of updates, recent installs, and hardware or driver changes as these may help finding the root cause..

You have to be a little bit crazy to keep you from going insane.


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#5
August 26, 2015 at 00:42:53
Hi,
Thank you for the tip.
I haven't installed any updates or new programs lately.
And unfortunately, I don't have a restore point...

I don't know if it helps somehow, but I uploaded the Windows Logs files in Event Viewer here:
https://www.mediafire.com/folder/w7...

It's all the activity for just one day (today).

Still don't get what the problem is..


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#6
August 26, 2015 at 08:24:00
Did you try the Last Known Good Configuration? How are you able to copy the logs if the OS won't boot? :)

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#7
August 27, 2015 at 07:52:46
✔ Best Answer
Thanks, I could finally figure it out.
I did a scan with Malwarebytes Anti-Malware and with AdwCleaner and some trojans were found. Jeez, I can't believe that was the cause...

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