Some Icons Randomly shrink while still being the large size?

1. Display scaling conflicts: Right-click on the desktop → Display Settings
Set all monitors to the same zoom ratio (e.g. 150%)
Tick ‘Preserve display scaling’.
2. DPI-aware application impact: Find the shortcut of the problematic application
Right click → Properties → Compatibility
Tick ‘Replace high DPI scaling behaviour’ → Select ‘System’.
3. Explorer cache error
Quick fix:
Quick fix: powershell
taskkill /f /im explorer.exe
Start explorer.exe
4. Theme/resolution changes:
Avoid frequent resolution switching
Use fixed theme (don't switch light/dark mode automatically)
5. Advanced troubleshooting methods
Check the graphics driver:
Win + X → Device Manager → Display Adapter → Update Driver
Reset the icon cache:
Delete the following files:
%userprofile%\AppData\Local\IconCache.db
Reboot your computer.
6. System integrity check:
powershell
sfc /scannow
dism /online /cleanup-image /restorehealth
7. Temporary solutions
Use shortcut keys for temporary recovery:
Ctrl + mouse wheel up/down → resize desktop icons