This is Case Study. The basic concept of this method is completely to erase the data of Call of Duty – Modern Warfare (2019), Modern Warfare II (2022) & Modern Warfare III (2023) & Battle.Net, & then re-install the game…Yes, it’s painful that you & your computer waste a lot of time to download & re-install the game, just better than re-install the Windows!
In last month, after changing the new M2 NVMe SSD (Samsung 990 PRO), replacing the old SSD (Samsung 860 EVO), & using “clone” method to copy the data from the old SSD to new M2, & changed the new file location in Battle.Net for COD games;
And then, the worst thing happened, every game can play (e.g. EA Games, Stream games) which came from old SSD, EXCEPT COD – Modern Warfare (2019), MW II & MW III CANNOT PLAY***** & stucking in Game Login screen (But COD Modern Warfare 2 Campaign Remastered can play!), EVEN after re-install the game & Battle.Net, & re-login the Battle.Net.
*I only play console mode, never the multiple player mode…so I don’t know this extreme resolution will work for multiple player mode or not!
I also tried some resolution which suggested by Reddit user & Youtuber, but Failure in my situation, including:
- Using “Scan & Repair” function in Battle.Net – FLOP;
- Changing the game program file to new & different name folder, & then changing the game install location (“Game Settings > Install Location”) in the Battle.Net – FLOP;
- Reset Network Setting in Windows – FLOP!
I also asked the customer service of Battle.Net for help, as usual as Battle.Net’s service standard…No respond at all!
CAUTION that: If you also installed COD – Modern Warfare 2 Campaign Remastered, you should backup the folder: “C:\Program Files (x86)\Call of Duty Modern Warfare 2 Campaign Remastered\players2\[“user-id folder”]”, before doing the following step;
The game saving data of Call of Duty – Modern Warfare (2019), MW II & III usually having cloud storage, so your game saving data will synchronize, once you re-installed the game.
So, let start the “painful” step as follow:
***Step 1***
Uninstall the game in Battle.Net
***Step 2***
Logout the Battle.Net
***Step 3***
Uninstall the Battle Net
***Step 4***
Go to Windows Registry Editor (Press: WINDOWS KEY + R, & then press: "Regedit")
- Find & DELETE folder: [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Blizzard Entertainment]; &
- Find & DELETE folder: [HKEY_CURRENT_MACHINE\SOFTWARE\Blizzard Entertainment]
***Step 5***
Delete the following folder: (Drive code may different fr your computer)
C:\Program Files (x86)\Battle.net
D:\Program Files (x86)\Call of Duty;
D:\Program Files (x86)\Call of Duty Modern Warfare;
D:\Program Files (x86)\ Call of Duty Modern Warfare 2 Campaign Remastered
C:\ProgramData\Battle.net
C:\ProgramData\Battle.net_components
C:\ProgramData\Blizzard Entertainment
D:\Users\Administrator\Documents\Call of Duty
D:\Users\Administrator\Documents\Call of Duty Modern Warfare
***Step 6***
- Go to “Firewall & network protection system settings” page > “Allow an app through the firewall” page;
- Then click “Change settings” DELETE all connection with COD games which downloaded in Battle.net & Battle.net app;
If you want to skip the Step 7 (Optional Step), suggest that you restart the computer after you done Step 6, & jump to Step 8 (Final Step).
***Step 7*** (Network Reset, Optional Step, suggest by some Youtuber…but it seen not much help in worst situation)
- Go to Command Prompt (CMD), Run as Administrator mode, in order to flushed the DNS Resolver Cache & Reset Netsh Winsock,
- FIRST, when CMD show: “C:\WINDOWS\system32>”, then type: “ipconfig /flushdns”,CMD will show: “Successfully flushed the DNS Resolver Cashe.”
- SECOND, Reset Netsh Winsock: Again, when CMD show: “C:\WINDOWS\system32>”,then type: “netsh winsock reset”. CMD will show: “Successfully reset the Winsock Catalog. You must restart the computer in order to complete the reset.”
- THIRD, when CMD show: “C:\WINDOWS\system32>”, then type: “exit”, close the CMD
- Restart the computer.
- After re-entry to Windows, go to “Network Reset” page, & Press “Reset now”,
- Dialogue box will prompted the question: “Are you sure you want to reset your network settings?” & Press “Yes”
- Computer will automatically to restart.
***Step 8***
- Re-install the Battle.Net; &
- Re-install the Game through the Battle.Net
In final, I hope this resolution will work for you, when you having similar situation. Thanks