Thanks for joining the Intel communities.
I understand you are looking for Windows 8.1 drivers for your Acer computer.
Please bear in mind that Intel does not provide drivers for Third Party manufactures. Intel can help with generic drivers, graphics, LAN, wireless. You can check the link below for more information: http://www.intel.com/p/en_US/support/detect
An example of generic drivers would be graphics driver, take a look at the link below and select your operating system version: