I found a solution for those who are on 1709 and cannot roll back. 3 things which completely fixed it for me after a month of pain.
1. Disable Game DVR - you probably heard this before and I thought I did this right too. In 1709 you cannot turn this off in Windows Settings or in Xbox settings. Here is the link to disable it - right at the bottom use the registry fix.
https://support.steampowered.com/kb_article.php?ref=6239-DZCB-8600
2. Game Mode - You can use the UI mode IN GAME but then you have to do this for each game or use the registry fix to disable globally easier to switch it off for all
https://www.tenforums.com/tutorials/75936-turn-off-game-mode-windows-10-a.html
3. Disable DiagTrack - I still had a few pauses every minute or so for a second (but game play was super smooth), until I turned this off which I found in another forum. Now the game runs smoothly like when I first played it. You can disable the service or turn off "Connected User Experiences and Telementry" within Msconfig / Services. This is a reporting service for diagnostics back to Microsoft.
https://www.bleepingcomputer.com/forums/t/588339/just-found-diagtrack-running-in-services/
Thats it folks, I hope this helps you!
Just in case you want to know whats in those registry edits;
---
Game Mode
[Disable] +Recommend
[HKEY_CURRENT_USER\Software\Microsoft\GameBar]
"AllowAutoGameMode"=dword:00000000
"AutoGameModeEnabled"=dword:00000000
[re-Enable]
[HKEY_CURRENT_USER\Software\Microsoft\GameBar]
"AllowAutoGameMode"=dword:00000001
"AutoGameModeEnabled"=dword:00000001
---
Game DVR in Registry
[Disable] +Recommend
Open Registry Editor (Run > regedit)
Navigate to HKEY_CURRENT_USER\System\GameConfigStore
Set the value of DWORD "GameDVR_Enabled" to 0
Go to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\
Create key "GameDVR".
Create DWORD 32bit called "AllowGameDVR" and set to 0
Restart your computer.
[re-Enable]
Reverse Above
---
Diagtrack Windows Stutter for BF1
[Disable] +Recommend
Msconfig.exe
Services
Connected User Experiences and Telementry
[re-Enable]
Select the checkbox next to "Connected User Experiences and Telementry" in Msconfig/Services
