After recent Windows 10 update, my Alienware laptop's CPU usage is always 100% right after boot.
Can't open games, or even close task manager.
But once disabled Nvidia 970m in device manager, CPU back to normal and games can be opened with Intel HD graphics.
Laptop in nearly new condition, didn't play games on it heavily, most of time using desktop. Found this problem last weekend.
My laptop's specs:
CPU: i7-4720HQ, RAM: 16G, GPU: nvidia 970m, Hard Drive: 256 SSD + 1TB HD
Tried following methods but all failed to solve CPU 100% when Nvidia GPU enabled.
1. Reset, reinstall Windows 10
2. Update latest Nvidia drivers
3. Update BIOS
4. Stop superfetch and all startup services
5. Modify maximum processor state from 100% to 99% in power options advanced settings
6. Bring laptop to Microsoft store, passed all hardware tests in Windows.
7. Contacted Alienware and passed all hardware tests in BIOS diagnostic
I don't know what else can I do, seems there is no problem on either software and hardware.
Any one had this issue? Please give me some advice.