Gateway DX4850 bios update via Windows prior to Tumbleweed install:

Hi, I have a question about updating the BIOS on a Gateway DX4850 machine with Windows 10 operating system installed. The installer here > https://www.acer.com/us-en/support/product-support/DX4850 Which I have placed and then (installed on win10 on the machines drive and once envoked), does not *offer* a bios update path from P01-A3 *to* P01-A410 . P01-A3 is current bios on Acer DX4850 ....hard to get BIOS to P01-A4...... your suggestions are very helpful due to bios utility run in Windows usually offer a more easy bios update road then say flashrom.... -Seasons Best🫥