I am unable to boot into my samsung laptop, i have tried all options, but in vain.
But I am able to boot using ubuntu 12.04.4 LTS cd.
Please help as i need all my data, personal as well as official. I am trying to restore using all the means, from google. I even tried to re-install Windows 7. the screen just shows “Setup is starting”
Thanks in advance.
hey please go to this guide and scroll down to the part can boot my computer and attach a frst log + additional log.
https://forum.avast.com/index.php?topic=53253.0
a malware expert can help you from there.
good luck
Do you want me install Anti Malware?? i am able to log in only by ubuntu cd. and not through windows.
hey no read my post you scroll down to the part unable to boot my computer in the guide i linked and attach a frst log then a malware expert will help you from there. Malwarebytes won’t work on problems like this at this stage.
bump you still need help?
Yes, sorry, i am a bit busy with official work.
Will post the log today evening.
hi mikaelrask,
please find FRST log attached.
OK the first fix will reset the registry
Download the attached fixlist to the same location as FRST
Run FRST as before and press fix
On completion try a normal boot
hi essexboy, i am getting the same problem(rebooted system with CD burned and then inserted flash drive and ran FRST). just wanted to tell you, system is 64 bit.
attached logs for fixlist.
thnx in advance.
This will remove the Avast drivers
Download the attached fixlist to the same location as FRST
Run FRST as before and press fix
On completion try a normal boot
still getting the grey screen 
tried normal boot, repair your computer, directory services restore mode, last known good configuration.
for repair your computer it is now getting stuck at CLASSPNP.sys.
attaching logs.
OK that shows that it is a system problem as opposed to Avast
Do you have a windows 7 cd ? If not let me know and I will supply a link to windows 7 recovery console
no, i dont hv windows 7 cd.
Download the following three programmes to your desktop :
For 64bit systems
2… Windows 7 64bit RC… I will PM this link
3. Farbar Recovery Scan Tool x64
Insert the USB stick Then run Rufus
https://dl.dropbox.com/u/73555776/rufus.JPG
Select the ISO file on the desktop via the ISO icon.
Press Start Burn
https://dl.dropbox.com/u/73555776/RufusISO.JPG
Then copy FRST to the same USB
http://dl.dropbox.com/u/73555776/frstwintoboot.JPG
Insert the USB into the sick computer and start the computer. First ensuring that the system is set to boot from USB
Note: If you are not sure how to do that follow the instructions Here
Windows 7 and Vista screenshots
When you reboot you will see this.
Click repair my computer
http://i1224.photobucket.com/albums/ee362/Essexboy3/RepairVista_7275.jpg
Select your operating system
http://i1224.photobucket.com/albums/ee362/Essexboy3/RepairVista_7277202.jpg
Select Command prompt
http://i1224.photobucket.com/albums/ee362/Essexboy3/RepairVista_7277.jpg
At the command prompt type the following :
notepad and press Enter.
The notepad opens. Under File menu select Open.
Select “Computer” and find your flash drive letter and close the notepad.
In the command window type e:\frst64.exe or e:\frst.exe dependant on system
and press Enter
Note: Replace letter e with the drive letter of your flash drive.
The tool will start to run.
When the tool opens click Yes to disclaimer.
https://dl.dropboxusercontent.com/u/73555776/frst.JPG
Press Scan button.
It will make a log (FRST.txt) on the flash drive. Please copy and paste it to your reply.
sorry, just followed the correct steps…again
Do you know how to access the BIOS to ensure that the HDD is set to either SATA or IDE
yes, got it. the laptop was a bit slow.
FRST.txt log attached.
From the command prompt on the recovery console type the following cammnd and press enter :
chkdsk c: /r
Once done try a normal boot
still facing the same problem
I am afraid it appears to be a windows system problem so you may have to re-install