This is what I got:
C:\WINDOWS\System32>mountvol Y: /s
C:\WINDOWS\System32>cd /d Y:\EFI\Microsoft\Boot\Fonts
Y:\EFI\Microsoft\Boot\Fonts>del *.ttf
Y:\EFI\Microsoft\Boot\Fonts>powershell -command "GCI Y:\ -File -Recurse | Sort Length -descending | Select FullName, Length -first 10"
FullName Length
Y:\EFI\Insyde\isflash.bin 35607912
Y:\EFI\Microsoft\Boot\bootmgfw.efi 2756512
Y:\EFI\Boot\bootx64.efi 2756512
Y:\EFI\Microsoft\Boot\bootmgr.efi 2744752
Y:\EFI\Microsoft\Boot\memtest.efi 2506672
Y:\EFI\Microsoft\Boot\kd_02_10ec.dll 476464
Y:\EFI\Microsoft\Boot\kd_02_8086.dll 361888
Y:\EFI\Microsoft\Boot\kd_02_14e4.dll 283968
Y:\EFI\Microsoft\Boot\Resources\bootres.dll 169392
Y:\EFI\Microsoft\Boot\SecureBootRecovery.efi 160560
Y:\EFI\Microsoft\Boot\Fonts>dir Y:\
Volume in drive Y has no label.
Volume Serial Number is 426D-913B
Directory of Y:\
24.12.2024 г. 11:55 EFI
0 File(s) 0 bytes
1 Dir(s) 43 923 456 bytes free
Y:\EFI\Microsoft\Boot\Fonts>cd /d C:\Lenovo\BIOS
C:\Lenovo\BIOS>move SelfHealing.* Y:\EFI\Lenovo\BIOS\
C:\Lenovo\BIOS\SelfHealing.fd
The file exists.
0 file(s) moved.