The first thing to establish is the number of fonts you have installed (including variations). The limit is around 700–1000, although I would recommend having no more than 250. For more detail on this, see I’d like to delete some fonts, but I’m afraid I’ll remove some that Word needs. What fonts do I have to keep?

Here is a list of other common font problems:

• The default printer has been set to something other than the printer you are actually using, or no default printer has been selected. Check that your default printer has not been set to “generic, text only”, as this will stop fonts from showing. See also Word shows only one or two fonts in its Font list.

• If your fonts suddenly stop displaying properly in Word, you are almost certainly very low on memory resources. If this happens, reboot immediately (and don’t save, or you are likely to corrupt your document). For more on this see: How can I recover a corrupt document or template – and why did it become corrupt?.

• The Fonts folder has lost its system properties. This will be obvious if you view the C:\Windows\\Fonts\ folder – you will see file names instead of font names; and you will not see the Install New Font option under the File menu. If this happens, right-click on the C:\Windows\\Fonts\ folder and select Properties.

If “System” is not checked (and greyed out) on the Properties dialog, then you cannot install new fonts; to fix this, restart your computer in DOS mode, and at the command line, type the command:

attrib +s +r C:\Windows\Fonts

1. Press Return to invoke the command, reboot, and all should be well.
2. Or you can use TweakUI from PowerToys. It has a “Repair Fonts” option which will also fix the Fonts folder. For details and the download, click here. TweakUI can also fix the “missing or damaged Desktop.ini file” issue mentioned in 6.
3. Your Font cache has become corrupted (this is less common). Delete C:\Windows\ttfCache (which is an extensionless file, not a folder) and reboot. (Do not move it; delete it). It will be regenerated.
4. Check that the “Fonts” value in the registry at:  “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders”
5. has the data “C:\WINDOWS\Fonts” (assuming that your Windows directory is C:\Windows)
6. Fontext.dll is missing or corrupt, or the Desktop.ini file may be missing or damaged. If so, see Microsoft Knowledge Base (MSKB) article Q133725: Missing Menu Commands in the Fonts Folder.
7. Check the following MSKB article on the use of the Fontreg tool: Q133732: Missing TrueType Fonts in Fonts Folder or Programs. ( http://support.microsoft.com/?kbid=133725 )