Launcher Prerequisites (x64)

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Amatista Sheeley

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Aug 4, 2024, 5:41:15 PM8/4/24

to plostaimachan

Whatversion of the engine are you trying to install? If you are using the Epic Games Launcher, do you have the 4.11 preview installed already? Let me know if specifically removing the prerequisites files for 4.11 before attempting to install another version helps.

The launcher gives the error 1603 (reason why I uninstalled VC 2015 as said in another question thread) when I have to cancel the installation of the prereq. And windows is fully updated, last checked today. Will try what happens with the temp folder deleted.

If you are using source code from GitHub you should be able to download the .zip file and extract it to your computer. From there you run Setup.bat followed by GenerateProjectFiles.bat. Once those finish you open the UE4.sln file and build the UE4 solution.

It does not prompt me to uninstall, because as far as my computer knows it is not installed. Is it possible that a file from a previous installation is still there even after uninstallation and is the problem? Where does the prereq get installed?

EDIT!

I found this in my Registry

Which engine folder did you check? If it is asking you to install rather than uninstall, can you go into the folder for the previous engine and check it as well.

EDIT:

The items in the registry may be causing the conflict. Let me know if removing the entry from the registry helps.