Optimizes performance of applications by caching commonly used font data. Applications will start this service if it is not already running. It can be disabled, though doing so will degrade application performance.
Windows Font Cache Service is a Windows service that by default runs at startup. Normally, this does not affect any apps or programs you run. But sometimes you use different apps that this service may interfere with or slow down an app that uses fonts. This happens when I use a font manager called NexusFont, a great tool for managing collections of thousands of fonts, it slows that it takes a long time for my fonts to be loaded. Though, I haven't verified it with other font managers.
So if you happen to experience a problem or your app is slowing down, this might help you.
Opening the Windows Services Manager
You can select with the following ways on how to open the Windows Services Manager or the services.msc:
Press the Windows Key ( ) + R, type services.msc and press enter key.
By using Windows Search, type services.msc and click the first result, below Best match, named Services (Desktop app) or click Open, found on the right side of the result. See image below.
Click Start Menu, type services.mscand click the first result, below Best match, named Services (Desktop app) or click Open, found on the right side of the result. See the image above.
Disabling the Windows Font Cache Service
following the instructions above, the Windows Services Manager is now open.
On the column named Name, look for Windows Font Cache Service, see image below.
Then, hover and click it. After clicking, press right-click (right mouse button) and select Properties.
On the Generaltab, set the Startup type by selecting Disabledfrom the drop-down list and press Apply. Then, press the Stopbutton. Wait for the process to finish and press OKto close the Propertieswindow.
Restart the app that you are having problems with. The problem should be solved.