Hi David, thanks for replying :)… No I have not run the Blacklight tool on my system…

aswMBR took lot more than 15 minutes to run for me :D… Here is the log of the scan:

aswMBR version 0.9.7.675 Copyright(c) 2011 AVAST Software
Run date: 2011-06-24 23:25:15

23:25:15.383 OS Version: Windows 6.0.6002 Service Pack 2
23:25:15.383 Number of processors: 2 586 0xF0D
23:25:15.383 ComputerName: MYDOOM UserName: Neil
23:25:19.018 Initialize success
23:25:20.438 AVAST engine defs: 11062400
23:25:58.174 Disk 0 (boot) \Device\Harddisk0\DR0 → \Device\Ide\IAAStorageDevice-0
23:25:58.174 Disk 0 Vendor: WDC_WD25 01.0 Size: 238475MB BusType: 3
23:25:58.205 Disk 0 MBR read successfully
23:25:58.205 Disk 0 MBR scan
23:25:58.205 Disk 0 unknown MBR code
23:25:58.205 Disk 0 scanning sectors +488394752
23:25:58.252 Disk 0 scanning C:\Windows\system32\drivers
23:26:14.958 Service scanning
23:26:17.189 Disk 0 trace - called modules:
23:26:17.251 ntoskrnl.exe CLASSPNP.SYS disk.sys acpi.sys hal.dll >>UNKNOWN [0x873018b8]<<
23:26:17.267 1 nt!IofCallDriver → \Device\Harddisk0\DR0[0x872e8ac8]
23:26:17.267 3 CLASSPNP.SYS[8bed18b3] → nt!IofCallDriver → [0x8646c700]
23:26:17.267 5 acpi.sys[8b6456bc] → nt!IofCallDriver → \Device\Ide\IAAStorageDevice-0[0x86473028]
23:26:17.781 \Driver\iaStor[0x8644dc48] → IRP_MJ_INTERNAL_DEVICE_CONTROL → 0x873018b8
23:26:18.717 AVAST engine scan C:\Windows
01:13:30.573 Scan finished successfully
01:14:06.500 Disk 0 MBR has been saved successfully to “C:\Users\Neil\Desktop\MBR.dat”
01:14:06.589 The log file has been saved successfully to “C:\Users\Neil\Desktop\aswMBR.txt”