Both drivers below, the first from the Microsoft catalogue and the second from Dell drivers for the Killer 1535. The Bluetooth drivers are after that if they are needed. Most systems should automatically install drivers if Windows is up-to-date.
Killer Wireless-n/a/ac 1535 Wireless Network Adapter Drivers
File: 1f8b831d-5b7f-46de-8953-37a7d73988ab_a2e8545c552d275c21d3392441c4faa351c2da76.cab
(DELL) Killer Wireless 1650/1435/1535 Wi-Fi Driver
File: Killer-Wireless-1650-1435-1535-Wi-Fi-Driver_975CC_WIN_2.2.1454_A11_01.EXE
cae015dc0b60c5eb93f198cb17e4d30b09a41175f0785df7a52586ce75c9f961
(DELL) Killer Wireless AC 1525/1535/1435 Bluetooth Driver
File: Killer-Wireless-AC-1525-1535-1435-Bluetooth-Driver_VP1XV_WIN_10.0.0.709_A10.EXE
52f19f8756e71efc88560fdfcd022b74795b83658628939821a96e156e933398
Killer Wireless AC 1525/1535/1435 Bluetooth Driver
File: 03e957e0-c290-4b04-8e6c-c69adb0ed0b0_0a72aaee59d9c1d4e39915b085c3ba64ce2b6850.cab