Welcome Windows Seven Forums.
At least we now know who to contact if we need a Wingding translator!
Seriously, I think you need to run a full anti-virus scan in Safe Mode, for which Malwarebytes is ideal. http://www.malwarebytes.org/products/malwarebytes_free
Once you've done that you can try a repair install to get your fonts folder repopulated. Failing that, do you have another computer you can use to copy and paste the fonts into your fonts folder? Repair Install