"Firmware update failed. Cannot find Upd05081.bin."
You can’t delete a .bin file if a program is using it. Try to delete it normally. If Windows says “file is open in another program,” restart your PC and try again. If still locked, use a tool like to see which process is using it.
Trust your antivirus. Let it remain quarantined. If a legitimate program later fails because of a missing Upd05081.bin (unlikely), you can restore it from quarantine. In 99% of cases, you will never miss it.
You double-click the file in Windows.