Use Windows Explorer.

C:\windows\fonts

Right click on the messed up font if its there and choose delete.

Search google,ca for the name of the font, includding the period and
ttf or post hear again with the name of the font and I'll E-mail you a
copy.

D.

If this problem is less than five days old, restore a copy of the
registry that predates the onset of the problem and see if that helps.
The five-day limit assumes that the computer is booted every day.  If it
is not booted every day, you may have an old enough registry backup that
you can use even though more than five days have elapsed.  Any registry
changes made after the date of the restored registry will be lost.

On the Start Menu, select Shut Down and Restart in MSDOS Mode.  At the
Windows prompt, type: scanreg /restore      and hit enter.  Once the
registry restore screen appears, select the date of the registry that
you wish to restore by highlighting it and then click enter.  If you see
a registry named:  Rbbad.cab, that is a copy of the registry that has
already been replaced.