I had a virus (or viruses!) on my laptop, which were taken care of by MBAM Pro (protection was disabled when I installed some software and wasn't re-activated, probably the reason how the malware got through!).
Within a day or so, I had a problem with the laptop (Samsung) intermittently not recognising a hard drive was attached during boot (confirmed in BIOS). I tested this was the case by trying 2 other known to be working hard drives and the problem continued. I contacted Samsung to see if there was a BIOS update available (apparently this is a fairly common problem with Samsung laptops and there is a BIOS upgrade available for some affected machines, mine not being one of them). So, Samsung advised to install the latest drivers via S Agent, which I did. I usually leave my laptop on all day, every day - it's virtually used as a desktop - so when exactly the problem I am now suffering from was created, I don't have a definitive answer.
Basically, windows would load up, displaying the normal Starting Windows with Windows logo, then displaying a black screen with the mouse cursor, but the actual login page is never shown.
I tried starting in Safe Mode, which would scroll through all the drivers loading, and stop on 'amdkmpf.sys' - so, I got another working hard drive, installed W7 and all the laptop drivers, rebooted to make sure all those drivers were OK, then slaved across the windows/system32/drivers/ folder, just incase that amdkmpf.sys or any other were corrupt, as Startup Repair said "Windows cannot repair the problem automatically". I ran chkdsk /f /r, no problems found. Sfc /scannow from command line reports something along the lines of a pending repair requires reboot - I read up on this problem and removed the pending.xml and reboot.xml files from /windows/winsxs/ to no avail, I still get the same message every time I try to run sfc /scannow.
I then thought, perhaps it's malware related, so I set up an AVG Boot CD and ran it, sure enough, it did find a few things, but nothing of any great meaning (mostly picked up on viruses being scam emails with attachments).
I then found a post on here, about Farbar Recovery Scan Tool. I subsequently ran this and have the log, which I will post shortly. In the meantime, I have also tried running startup repair 3 times from the W7 CD, to no avail. Apparently I'm now on the 30th repair attempt, which Windows still cannot resolve due to the problem "may be caused by unspecified changes" - very helpful!
I've tried every boot option by pressing F8 (Last Known Good Config, Safe Mode, etc) and still cannot get into Windows. The closest I get is by booting normally - but am left with this black screen.
Unfortunately, windows/minidumps/ is empty - no BSOD log file is created when Windows BSOD's (which it appears to do after a while after hanging on amdkmpf.sys when trying to start in safe mode) - but I do have some 'CBS.log' files. I guess the Farbar log is my last hope....
I was hoping one of you kind people could take a look at this Farbar log and see if there is anything suspicious looking which may be causing the problem.
Edited by Spider-Man, 10 January 2015 - 07:34 AM.