Microsoft ended support for Windows 7 in January 2020. Intel and Acer officially stopped providing Windows 7 drivers for chipsets newer than 100-series. On Acer systems with 6th gen Intel or newer, you will need to use a "sideloaded" or modified driver.
: For systems using Intel 8/9/100 series or C220/C610 chipsets, the generic Intel USB 3.0 eXtensible Host Controller Driver intel usb 3.0 driver for windows 7 -32-bit 64-bit- acer
Enter your Serial Number , SNID , or Model Name (e.g., Aspire E5-531). Microsoft ended support for Windows 7 in January 2020