Hello,
You can go to your device manufacturer's website, search for your system model and install Qualcomm Atheros wireless driver available.
For example, for ACER ASPIRE XC-605 desktop (as mentioned by OP), the Qualcomm Atheros wireless driver can be easily downloaded from product support page on Acer's website:
https://www.acer.com/ac/en/ID/content/support-product/4945;-
Hope this helps!
Note: Acer.com is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.