I've only had to run SFC to get the font files back in. While that gets me the files, your font settings are often blown. THIS IS NOT A BUG! Windows allows you to set whatever fonts so to go back to stock you have to set the fonts up manually.
Don't have your W7 DVD? While I could ask why folk don't have them or make system backups, here's a google about media.
Somehow I deleted some raster system font (*.fon) of Windows7.
Therefore, a few programs used fixedsys.fon as a compensation, which sometimes bothers. Available lists include only vector fonts, eg. here:
Can be found somewhere a list of required fonts for os win7, including raster?
thanks for advice