Windows 10 has a special "fast startup option". Basically this seems to make your PC take longer to shutdown but makes the startup a bit quicker. Turn this off! That's it! You find it by:
- Power and sleep
- additional power settings
- click on "choose what the power buttons do"
- scroll down to Shutdown settings
- uncheck the box next to "turn on fast startup"
- click save changes
This fixed my sluggish Chrome problem! I got the Group Policy Client error for the first time today and found this thread. Until I implemented this solution Chrome had been so sluggish, sometimes timing out when trying to connect to websites. After following this simple procedure it is flying! As mentioned by Mirador86 I had to click on "Change settings that are currently unavailable" to make the Shutdown Settings appear. Thank you!