Mykey.exe

If the file is located outside the ASUS folder or is not digitally signed by ASUS, you are likely dealing with an infection.

It should be in C:\Program Files (x86)\CHIPDRIVE\CHIPDRIVE MyKey\MyKey\ . mykey.exe

If you see an error saying "Windows cannot find mykey.exe" when pressing Fn keys, the file has been accidentally deleted or quarantined by an overzealous antivirus. Download the correct driver pack from ASUS Support or restore from antivirus quarantine. If the file is located outside the ASUS