I’m not sure if I understand you.
When you started awsMBR scann,and when it finish scan,did he show Fix button as available?
See the ScreenShot?
http://public.avast.com/~gmerek/aswMBR.htm
Tell me now for computer state (after Fix )
Additional checks:
Please download MBRCheck.exe to your desktop.
[*] Be sure to disable your security programs
[*] Double click on the file to run it (Vista and Windows 7 users will have to confirm the UAC prompt)
[*] A small window should open on your desktop
[*] if an unknown bootcode is found you will have further options available to you, at this time press N then press Enter twice.
[*] If nothing unusual is found just press Enter
[*] A .txt file named MBRCheck_mm.dd.yy_hh.mm.ss should appear on your deskop. Please post the contents of that file.