1. Corrupted Font Cache (Most Common)
Windows caches fonts, and if the cache becomes corrupted, applications can display strange symbols, circles, or missing characters.
Fix:
- Press
Win + R - Type
services.msc - Stop:
- Windows Font Cache Service
- Windows Presentation Foundation Font Cache 3.0.0.0 (if present)
- Navigate to:
C:\Windows\ServiceProfiles\LocalService\AppData\Local- Delete files beginning with:
FontCache- Restart Windows.
- Windows Font Cache Service
2. Corrupted System Fonts
If only certain fonts are affected, Paint may be trying to use a damaged font.
Check:
- Open WordPad or Notepad.
- Try the same font that glitches in Paint.
- If the problem appears there too, the font itself is likely corrupted.
Repair system files: Open Command Prompt (Admin) and run:
BAT
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow
Restart after both complete.
3. Graphics Driver Issue
Paint in recent Windows versions uses hardware acceleration.
Test:
- Update your display driver from Device Manager.
- Or temporarily install the latest Intel/NVIDIA/AMD driver from the manufacturer.
If the issue disappears after updating, it was likely a rendering problem.
4. Clear Paint App Data
If the issue occurs only in Paint:
- Settings → Apps → Installed Apps
- Microsoft Paint → Advanced Options
- Click:
- Repair
- If needed, Reset
- Repair
5. Display Scaling Bug
Try:
- Settings → System → Display
- Set Scale to 100%
- Sign out and back in
Some font rendering issues appear at custom scaling levels.
Thanks.