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Fallout 4 Running Multiple Copies: Difference between revisions

From Mike Beane's Blog
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* See [https://forums.nexusmods.com/topic/13494967-downgrading-fallout-4-from-1109840-to-1101630-steam/ Downgrading Fallout 4 from 1.10.984.0 to 1.10.163.0 (Steam)] or the [[Talk:Fallout_4_Running_Multiple_Copies|Discussion Page]] here for archive reasons (and my notes)
* See [https://forums.nexusmods.com/topic/13494967-downgrading-fallout-4-from-1109840-to-1101630-steam/ Downgrading Fallout 4 from 1.10.984.0 to 1.10.163.0 (Steam)] or the [[Talk:Fallout_4_Running_Multiple_Copies|Discussion Page]] here for archive reasons (and my notes)
** The Ultra-high resolution dlc is fairly large and should not be absolutely required (re: optional)
* Place the new folder at ...Steam\steamapps\common
* Place the new folder at ...Steam\steamapps\common


Revision as of 14:11, 10 August 2024

Stub page for thoughts

Fallout London requires Vault 13 Demo requires Fallout 4 Next Gen is


Read-Only

For Steam users, to stop Fallout 4 from auto updating to the latest version:

  • Find "appmanifest_377160.acf" and set it to Read-Only
    • I have two copies of the .acf, one each with the flag set differently

Clean Base Installs

Note: make sure you local saved games are safely backed up. I'm not sure I'll look too hard in how to manage saved games (maybe there is a mod for that).

1.10.163.0

  • Goal: Create a clean installation folder named "Fallout 4 - 1.10.163.0"
  • Pre-Requisite: .....\Steam\steamapps\appmanifest_377160.acf is set to Read-Only
    • See notes above
  • Background: Since the Nextgen update there have been mods coming out that require the pre-Nextgen Fallout installation to work. Creating a clean base install folder that can be used as the foundation for starting different mod installs seems like the way to go. G

1.10.984.0

  • Make sure that the current Fallout 4 isn't really needed.
  • From the library manager, remove the installation.
  • Start a fresh installation.
  • After install, before you run the game, copy the Fallout 4 folder
  • Rename the copied folder "Fallout 4 - 1.10.984.0"
  • Place the new folder at ...Steam\steamapps\common

Clean Base Prep Completed

You should now have a copy of each Fallout 4 base version, never run, at ...Steam\steamapps\common. Next steps will make copies of these folders in relation to the specific mod.

Vault 13 Demo

  • Go to ...Steam\steamapps\common
  • Shift+Right click in the folder and select Open Powershell Window Here or Open Command Window here
    • If the latter, type powershell.exe and press enter in the command window
  • Run the following command and wait while it copies files
Copy-Item -Path "Fallout 4 - 1.10.163.0" -Destination "Fallout 4 - Vault 13 Demo" -Recurse
  • Vault 13 Demo doesn't like cc (Creation Club) files. Run the following command
Remove-Item -Path "Fallout 4 - Vault 13 Demo\cc*" -Recurse -WhatIf -Confirm
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