Fix Persistent Checkboxes in File Explorer
Reset Folder Options: Explorer > ⋯ > Options > View tab > Reset Folders + Restore Defaults.
Run System Repairs: Open Admin CMD → sfc /scannow DISM /Online /Cleanup-Image /RestoreHealth
Clear Icon Cache: Delete IconCache.db via CMD and restart.
Use Group Policy (Pro only): Enable “Do not use check boxes to select items” in gpedit.msc.
Create New Profile (if needed): If all else fails, make a new user account and migrate your data.