Kontrollscan mit aswmbr: Unknown Mbr

aswMBR version 0.9.9.1771 Copyright(c) 2011 AVAST Software
Run date: 2014-03-23 11:45:09
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11:45:09.309    OS Version: Windows x64 6.2.9200 
11:45:09.309    Number of processors: 4 586 0x1301
11:45:09.309    ComputerName: HOME  UserName: 
11:45:09.480    Initialze error 1 
11:45:14.597    AVAST engine defs: 14032201
11:45:26.485    Disk 0 (boot) \Device\Harddisk0\DR0 -> \Device\0000002d
11:45:26.485    Disk 0 Vendor: ST500LT012-9WS142 0001SDM1 Size: 476940MB BusType: 11
11:45:26.500    Disk 0 MBR read successfully
11:45:26.516    Disk 0 MBR scan
11:45:26.516    Disk 0 unknown MBR code
11:45:26.547    Disk 0 Partition 1 00     EE          GPT           2097151 MB offset 1
11:45:26.563    Disk 0 scanning C:\Windows\system32\drivers
11:45:26.563    Service scanning
11:45:27.265    Modules scanning
11:45:27.265    Disk 0 trace - called modules:
11:45:27.280    ntoskrnl.exe CLASSPNP.SYS disk.sys amd_xata.sys storport.sys hal.dll amd_sata.sys 
11:45:27.280    1 nt!IofCallDriver -> \Device\Harddisk0\DR0[0xfffffa8004dfb060]
11:45:27.296    3 CLASSPNP.SYS[fffff880013a5e0a] -> nt!IofCallDriver -> [0xfffffa8003944310]
11:45:27.327    5 amd_xata.sys[fffff8800130d594] -> nt!IofCallDriver -> \Device\0000002d[0xfffffa8004df87f0]
11:45:27.327    AVAST engine scan C:\Windows
11:45:27.327    AVAST engine scan C:\Windows\system32
11:45:27.343    AVAST engine scan C:\Windows\system32\drivers
11:45:27.343    AVAST engine scan C:\Users\xxx
11:45:27.343    AVAST engine scan C:\ProgramData
11:45:27.358    Scan finished successfully
11:45:58.543    Disk 0 MBR has been saved successfully to "C:\Users\xxx\Desktop\MBR.dat"
11:45:58.543    The log file has been saved successfully to "C:\Users\xxx\Desktop\aswMBR.txt