Your best option for conversion of various virtual hard disk files, including the generic .vhd files, would be to use programs like ISOBuster that offer great support for various disk image formats and can convert many of them to standard ISO format.
Convert Virtual Hard Disk to CD/DVD/HD DVD/Blu-ray disc ISO binary image.
We found one software available in the database for this conversion.
Microsoft Windows software - convert vhd to iso on Windows
A highly specialized and easy to use CD, DVD and blu-ray data recovery tool
Convert from vhd file format
|Yes, ISOBuster supports iso file conversion as a target file type.||Yes||Yes||iso editor||Yes||No||No||Yes|
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.