Here is the aswmbr.exe log. I'll run the next step afterwards. Thanks.
aswMBR version 0.9.8.986 Copyright© 2011 AVAST Software
Run date: 2011-11-21 17:58:40
-----------------------------
17:58:40.343 OS Version: Windows 6.1.7601 Service Pack 1
17:58:40.343 Number of processors: 4 586 0x2502
17:58:40.343 ComputerName: HP-PC UserName: Hp
17:58:41.138 Initialize success
17:58:46.103 Disk 0 (boot) \Device\Harddisk0\DR0 -> \Device\Ide\IAAStorageDevice-1
17:58:46.119 Disk 0 Vendor: WDC_WD32 12.0 Size: 305245MB BusType: 3
17:58:46.134 Disk 0 MBR read successfully
17:58:46.134 Disk 0 MBR scan
17:58:46.150 Disk 0 unknown MBR code
17:58:46.150 Disk 0 scanning sectors +625140400
17:58:46.181 Disk 0 scanning C:\Windows\system32\drivers
17:58:46.181 Service scanning
17:58:47.445 Modules scanning
17:58:48.303 Disk 0 trace - called modules:
17:58:48.318 ntoskrnl.exe CLASSPNP.SYS disk.sys hpdskflt.sys halmacpi.dll ACPI.sys iaStor.sys
17:58:48.334 1 nt!IofCallDriver -> \Device\Harddisk0\DR0[0x87eab3c0]
17:58:48.334 3 CLASSPNP.SYS[84bd559e] -> nt!IofCallDriver -> [0x87eabb20]
17:58:48.334 5 hpdskflt.sys[8d636090] -> nt!IofCallDriver -> [0x873c8c30]
17:58:48.334 7 ACPI.sys[84a1a3d4] -> nt!IofCallDriver -> \Device\Ide\IAAStorageDevice-1[0x8737e028]
17:58:48.350 Scan finished successfully
17:58:56.586 Disk 0 MBR has been saved successfully to "C:\Users\Hp\Desktop\MBR.dat"
17:58:56.586 The log file has been saved successfully to "C:\Users\Hp\Desktop\aswMBR.txt"