To mitigate damage from a virus infecting a Windows 7 MBR I boot into TrueCrypt encrypted windows from a CD (changed BIOS to boot CD first). I plan to boot other Operating Systems from external hard drives and feel removing the MBR is a wise step in prevent a virus from jumping from one of those to the main encrypted OS.
Googling shows the only way to remove an MBR is use Linux or remove the hard drive and connect to another machine. Is this true?
In summary I am looking for an easy way to achieve remove the MBR, preferably via a GUI as that will minimize risk of damaging any actual data. Perhaps it's possible to boot into Windows from an external hard drive then use DiskPart to clean the MBR on the internal drive (after selecting disk and partition).