Windows has recovered from an unexpected shutdown? :o

[James1431997]

Hi.
I've been having an issue with my PC, which has started only recently.
It's running Windows 7 Home Premium 64bit, and there's a distinct possibility someone has tampered with the system. -_-
I tend to leave it running whilst I'm away, and I've started getting "Windows has recovered from an unexpected shutdown."
It's happened about five times now, especially when I'm running my MineCraft server, but I'm never at the machine when it has.
Here's the problem details:

Code: [Select]

Problem signature
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 2057

Extra information about the problem
BCCode: 3b
BCP1: 00000000C0000005
BCP2: FFFFF880048BD817
BCP3: FFFFF880079F1900
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1
Bucket ID: X64_0x3B_atikmdag!DisplayManager2::NotifyModeChangeOccured+47
Server information: bcaa30ad-37e5-49b9-b640-e00a1f2db95a
Thanks in advance!
James

[Allan]

Download BlueScreenView:
http://www.nirsoft.net/utils/blue_screen_view.html
unzip downloaded file and double click on BlueScreenView.exe to run the program.
when scanning is done, go to EDIT - Select All
Go to FILE - SAVE Selected Items, and save the report as BSOD.txt
Open BSOD.txt in Notepad, copy all of the content, and paste it into your next reply

[James1431997]

Thanks   

Code: [Select]

==================================================
Dump File         : 021011-23228-01.dmp
Crash Time        : 10/02/2011 20:28:12
Bug Check String  : SYSTEM_SERVICE_EXCEPTION
Bug Check Code    : 0x0000003b
Parameter 1       : 00000000`c0000005
Parameter 2       : fffff880`048f9817
Parameter 3       : fffff880`075e1900
Parameter 4       : 00000000`00000000
Caused By Driver  : ataport.SYS
Caused By Address : ataport.SYS+1c74
File Description  :
Product Name      :
Company           :
File Version      :
Processor         : x64
Computer Name     :
Full Path         : C:\Windows\Minidump\021011-23228-01.dmp
Processors Count  : 4
Major Version     : 15
Minor Version     : 7600
Dump File Size    : 275,584
==================================================James

[Allan]

That a fairly unusual error message. I'd suggest you try all standard troubleshooting steps:

1) Update all drivers if there is a more current one available  (your ati video card, sound card, ethernet card, chipset, etc)
2) Check for a bios update
3) Run checkdkisk: Right-click on a command prompt icon and open as administrator. In the command prompt window type:chkdsk /r  (then press ENTER). You'll be told the disk is in use and asked if you want to run checkdisk on the next boot. Say yes, exit the command prompt window, and reboot.
4) Download memtest (www.memtest.org), burn it to disk, and check ram
5) Run full scans with both your AV utility and MalwareBytes

Also, look in device manager and see if there are any errors please.