Safe to Delete

Windows Font Cache DAT Files (FontCache 3.0.0.0.dat)

Space: 500 MB – 3 GB windows Windows
Quick Answer: FontCache dat files cache WPF and TrueType font metrics. Deleting FontCache dat files is safe and fixes font rendering bugs.

Bottom Line: It is 100% safe to delete FontCache DAT files. Clearing FontCache3.0.0.0.dat forces Windows Presentation Foundation (WPF) to rebuild fresh font metrics tables.

What are FontCache DAT Files?

Located at C:\Windows\ServiceProfiles\LocalService\AppData\Local\FontCache, Windows caches rendered font glyph metrics in binary .dat files.

How to Clear FontCache DAT Files

net stop FontCache
del /f /q C:\Windows\ServiceProfiles\LocalService\AppData\Local\FontCache\*.dat
net start FontCache

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