The "Windows Font Cache Service" is actually a component of Microsoft .NET (well, technically Windows Presentation Foundation; which is a standalone subset of .NET)
There is really no harm in disabling it. Apps that require this service to render (Zune Media Player, MetroTwit and Win8 Metro Apps come to mind) will automatically start it when needed; despite you disabling it.
The only performance impact will be experienced while starting apps. With the service disabled, apps that use it will need to read your *entire* font collection into memory prior to launch (One of the many ways Windows is poorly designed). This service obviously mitigates that need by having everything already in memory; ready to go.
The "Windows Font Cache Service" is actually a component of Microsoft .NET (well, technically Windows Presentation Foundation; which is a standalone subset of .NET)
Thanks
That sounds like good news to me.
A prerequisite for any APP that I consider installing is that it should NOT use .NET
I have that service set to the startup type Manual because I've had a handful of programs that needed it and would complain if it couldn't be started. I'd think setting the startup type to Disabled may make some programs that require it cry foul.