Came across this issue today, it's super obnoxious that Intel has removed the drivers for EOL products.
The Wireless-N 7260 card was used in the DN2820FY NUC; the drivers between the Wireless-N and Wireless-AC cards are identical.
The latest 7260 Bluetooth and WiFI drivers (v21.10.1 released on 2019-04-12) are still available direct from Intel, just hidden away in the DN2820FY drivers page:
https://www.intel.com/content/www/us/en/download/19492/intel-wireless-bluetooth-driver-for-windows-1...
https://www.intel.com/content/www/us/en/download/19491/intel-wireless-technology-based-driver-for-dn...
If they get removed, they have been archived on the Internet Archive's Wayback Machine:
Unfortunately Intel blocks the Wayback Machine from saving the driver listing pages (redirects to login). If people are after the published SHA-1 hashes, I've archived the driver listing pages via archive.is:
SHA-1 hashes:
bt_21.10.1_64_win10.exe - C6F989180A18C0077C4E2EB5BE74C612BE6276E5
bt_21.10.1_32_win10.exe - C6F989180A18C0077C4E2EB5BE74C612BE6276E5 (not a copy and paste error - the hash for the 32-bit driver is the same as the 64-bit driver and I've checked this)
wifi_21.10.1_proset64_win10.exe - B7938CA268B635A5753659841878E127B3694819
Hope this helps.
