This model, like thousands of other PC's, can't be upgraded to a Win 11 compatible CPU. This model is a Z170 chipset motherboard and a 7th gen CPU is maximum. Microsoft Win 11 minimum Intel CPU requirement is an 8th gen.  
Hi, following my configuration: Alienware Aurora R5 BaseD00AWR522Intel(R) Core(TM) i7-6700K Processor (4-Cores, 8MB Cache, Turbo Boost 2.0, Overclocked up to 4.2GHz on all four cores)850W PSU Liquid Cooled Chassis32GB Quad Channel DDR4 2133MHz (8GB x 4)512GB PCIe SSD (Boot) + 2TB 7200RPM SATA 6Gb/s (Storage)8x DVD+/-RW 9.5mm ODDNVIDIA GeForce GTX 1080 Founders Edition with 8GB GDDR5XIntel 3165AC + BT4.2 [802.11ac + Bluetooth 4.2, Dual Band 2.4&5 GHz, 1x1] I tested it with the Microsoft PC Health Check and it resulted not compatible with Windows 11 because of the processor. This is the message I got: The processor isn't currently supported for Windows 11. Processor Intel Core i7-6700K CPU @ 4.00GHz My question is: can I upgrade the processor? What processor should I install, makes my Aurora R5 compatible with Windows 11? Thank you
Aurora R5, CPU not compatible Windows 11