THE ANSWER TO SOME OF YOUR QUESTIONS This post is a living - breathing post. It will be updated over time to try and answer more of your questions.
How to reverse the downgrade / Update to latest version As we all know, F4SE has been updated and now we are just waiting for the mods to be too! This means that we no longer will need to downgrade as soon as our beloved mods are up to speed.
To reverting back to latest version of Fallout 4 all you need to do is to verify integrity of your files on Steam
Open your Game Library on Steam.
Right-click on your game.
Select Properties from the menu.
In the Properties menu, select 'Local Files' from the left-hand panel.
On the Local Files page, select 'Verify integrity of game files'
Steam will then verify your files.
What are the two downgrading options and which one should I use? Depending on whether or not you want to use the latest Creation Club files or just want to avoid logging in using steam. You may choose between either:
1. Downgrade by patching files - I Want to use latest CC files! This method does not require you to login using steam When downgrading by patching files, the Fallout4.exe, Fallout4Launcher.exe and steam_api64.dll will be downgraded. This works for current version 1.10.980 and older version 1.9.4 and it may work for the upcoming update on monday 2024-05-13, but an update will be made in case it does not.
You can patch using files by running the bat file "Downgrade by patching files.bat" or if you want to have the plugins above installed automatically you can run "Downgrade by patching files and install plugins.bat" although I would avoid using it if you use MO2.
2. Downgrade by downloading depots - I want a clean downgrade with all files reverted to previous version! Downloading all depots will require you to login to steam as the files are directly downloaded from their servers and requires a logged in user to do so.
It replaces all your fallout 4 data files including but not limited to the Fallout4.exe, Fallout4Launcher.exe and steam_api64.dll. And therefor this method should work even on any future update of the game You can do this by running "Downgrade by downloading depots.bat"
When Downgrading by downloading depots, do I also need to downgrade the Creation Kit? You don't need to downgrade Creation Kit but its only if you want to make sure you have the same version of Creation Kit that properly worked with the older version (v1.10.630.0) of Fallout 4.
I moved my Steam installation out from under "Program Files" after having downgraded it with this tool. (I did not create a backup, FML.) I reinstalled FO4 in the new location. Now the downgrader fails with the error "System.Collections.Generic.KeyNotFoundException: The given key 'time_last_update_corruption' was not present in the dictionary."
Any ideas how to fix? I tried the different ways of patching and they all gave the same error. The above is from the log file--there's nothing useful in the error file.
I tried to make a new install of FO4 after the collection I used didn't update and I couldn't figure it out and thus also tried to use the downgrade again, but I tried using both by depots and patch files and install plugins, and both just gives a "an unexpected error occured: the given key timelast_update_corruption was not present in the dictionary. A full report has been saved to error.txt."
I need help, I tried reverting the downgrade and it didn't work and now I can't launch FO4. I tried verifying the files and deleting fallout 4, nothing helped.
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This post is a living - breathing post. It will be updated over time to try and answer more of your questions.
How to reverse the downgrade / Update to latest version
As we all know, F4SE has been updated and now we are just waiting for the mods to be too! This means that we no longer will need to downgrade as soon as our beloved mods are up to speed.
To reverting back to latest version of Fallout 4 all you need to do is to verify integrity of your files on Steam
What are the two downgrading options and which one should I use?
Depending on whether or not you want to use the latest Creation Club files or just want to avoid logging in using steam.
You may choose between either:
1. Downgrade by patching files - I Want to use latest CC files!
This method does not require you to login using steam
When downgrading by patching files, the Fallout4.exe, Fallout4Launcher.exe and steam_api64.dll will be downgraded. This works for current version 1.10.980 and older version 1.9.4 and it may work for the upcoming update on monday 2024-05-13, but an update will be made in case it does not.
The downgrade by patching requires you install
You can patch using files by running the bat file "Downgrade by patching files.bat" or if you want to have the plugins above installed automatically you can run "Downgrade by patching files and install plugins.bat" although I would avoid using it if you use MO2.
2. Downgrade by downloading depots - I want a clean downgrade with all files reverted to previous version!
Downloading all depots will require you to login to steam as the files are directly downloaded from their servers and requires a logged in user to do so.
It replaces all your fallout 4 data files including but not limited to the Fallout4.exe, Fallout4Launcher.exe and steam_api64.dll. And therefor this method should work even on any future update of the game
You can do this by running "Downgrade by downloading depots.bat"
When Downgrading by downloading depots, do I also need to downgrade the Creation Kit?
You don't need to downgrade Creation Kit but its only if you want to make sure you have the same version of Creation Kit that properly worked with the older version (v1.10.630.0) of Fallout 4.
Any ideas how to fix? I tried the different ways of patching and they all gave the same error. The above is from the log file--there's nothing useful in the error file.
Open the libraryfolders.vdf file with notepad
add the following text in a new line above "apps": "time_last_update_corruption" ""
So it looks like
...
"time_last_update_verified" "1747514939"
"time_last_update_corruption" ""
"apps"
{
etc
etc
}
...
It should work now.
What the f*#@ does this mean and why isn't it fixed yet?
Open the libraryfolders.vdf file with notepad
add the following text in a new line above "apps": "time_last_update_corruption" ""
So it looks like
...
"time_last_update_verified" "1747514939"
"time_last_update_corruption" ""
"apps"
{
etc
etc
}
...
It should work now.
You can do this yourself if your not confortable with this
And that report says:
"Version: 1.10.6.3
[Settings]
QR: False
Authenticated: False
Language:
Downgrade Creation Kit: False
Downgrade All DLCs: False
Delete Creation Club files: False
Keep Depot: False
[Crashing Error]"
:(
[Settings]
QR: False
Authenticated: False
Language:
Downgrade Creation Kit: False
Downgrade All DLCs: False
Delete Creation Club files: False
Keep Depot: False
[Crashing Error]
[Settings]
QR: False
Authenticated: True
Language: english
Downgrade Creation Kit: False
Downgrade All DLCs: False
Delete Creation Club files: False
Keep Depot: False
[Previous Errors]
Error #1: Encountered 401 for depot manifest 377161 7497069378349273908. Aborting.
Error #2: Unable to download manifest 7497069378349273908 for depot 377161
Error #3: App 377160 was not completely downloaded.
[Crashing Error]