Give users access to install fonts in Windows 7 Enterprise

Log on as administrator. Open command prompt as admin.

attrib -r -s %systemroot%\fonts

takeown /f "%systemroot%\fonts" /r /d n

(optional - gives administrators full rights on the fonts folder):  icacls "%systemroot%\fonts" /grant administrators:F /t

You can now add or change permissions on the Fonts folder like any regular folder.

Give user(s) modify access to %systemroot%\Fonts

icacls "%systemroot%\fonts" /grant USERNAMEorGROUP:M /t

Give user(s) modify access to %systemroot%\system32\FNTCACHE.dat

icacls "%systemroot%\system32\FNTCACHE.dat" /grant USERNAMEorGROUP:M /t

Give user(s) modify access to HKLM\Software\Microsoft\Windows NT\Current Version\Fonts