diff --git a/README.md b/README.md
index 8b7fb94..c01edef 100644
--- a/README.md
+++ b/README.md
@@ -91,5 +91,8 @@ Set *disable-external-gpu* field under *PciRoot(0x0)/Pci(0x2,0x0)* **or** add *-
 
 **Warning**: Disabling laptop dGPU through Optimus Method from this guide [Disabling laptop dGPUs (SSDT-dGPU-Off/NoHybGfx)](https://dortania.github.io/Getting-Started-With-ACPI/Laptops/laptop-disable.html) will result in fan turning at max and computer auto shutdown.
 
+### Keyboard Indicator Light
+**Warning**: It is very likely that Fnlock indicator light will break for good in Windows without some sort of keyboard reset.
+The keys are working but their indicator lights malfunction. In Mac, Capslock light is working but Numlock light is not. In Windows, FnLock light is not working even when I boot naturally without Opencore, probably broke it but it is merely cosmetic. These lights still work normally in BIOS.