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    STOP draining my C drive!

    I want to know what is going on here.. I have UE4 on my D drive, my project files are all on my D drive, yet whenever I open UE4 it hogs a bunch of my C drive up! I tried loading a game, my computer acted up and was going slow, UE4 crashed. I saw I had NO space left on my C drive! I clear up some space, get it to about 800 MB, reopen a project, crashes again! Now my C drive is down to about 15 mb! and now it's fluctuating around 8-10 mb.. but WHERE ARE MY 800 MB THAT UE4 TOOK UP!?! Where is it putting data and what is that data?? EVERYTHING SHOULD be and NEEDS to be run off my D drive!! This is seriously ******* me off!

    #2
    Derived data is cached in %localappdata%\UnrealEngine folder, that's where the space goes.

    You can make a symbolic link to another folder if you want, it's simple enough to do. With one you can put the derived data where you want. It's kind of like a shortcut to a folder. https://www.maketecheasier.com/creat...nks-windows10/

    Last edited by jonimake; 12-23-2019, 04:29 AM.

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      #3
      Just get bigger drive, even SSD are getting cheap. And calm down enjoy holidays.

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        #4
        Originally posted by Nawrot View Post
        Just get bigger drive, even SSD are getting cheap. And calm down enjoy holidays.
        That doesn't really solve the "Why can't i choose where that data gets stored"-problem, though. I think its a big problem that nowadays every program just dumps additional data in the user folder (and possibly even all over the C drive) despite the user having chosen a different location or entirely different drive during the installation because he specifically did NOT want the program to take up C drive space.

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          #5
          When downloading a new engine version you are given the ability to locate the engine version any where you wish. The engine data is not that bad and does not explain by it's self it's chewing up you C drive space.

          What will suck up storage space on an SSD drive is where the asset vault is located. By default the launcher will locate it on your C drive so all of you downloaded goodies is taking up all of your space and not the engine versions.

          To solve it and as you said put stuff where you want it launch the launcher and under settings change the location of the Vault. Once done you should be able to move the vault from your C drive and delete it.
          .
          Clarke's third law: Any sufficiently advanced technology is indistinguishable from magic.
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            #6
            I think Stefan you should complain to microsoft about that. Microsoft made that very convulted system for storing user data, they change it with every new windows and keep backward compatibility. With new UAC thingy that is security protection windows style it only annoys users and programmers and its child's play to circumvent it (if you do not care about stability of your code like malware authors). You see there are probably reasons epic uses what microsoft recommends, and ms recommends user data folder. So here i rather blame microsoft, epic coders just follow guidelines for your system. Only real solution is to get bigger SSD for system.

            I also hate when my PC knows better what i want to do, like being stubborn with storing huge stuff on drive C, or preventing me from saving on C:\ while every other app can do it, or changing how folder attributes behave so some older apps refuse to work on win 10 properly. There is a lot of stuff like that.
            Last edited by Nawrot; 12-24-2019, 04:21 AM.

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              #7
              For what's worth, if you somebody use SSD and store all important assets in the synced cloud and project's repository (what anybody should do), there's no advantage of dividing drive to partitions.
              - You want the system, all apps, and data used by them stored on SSD.
              - Nothing will work faster on SSD in partitions, but you couldn't use some space if the drive is divided.
              - Buying single bigger SSD and selling other drives is still the easiest way to boost comfort of work.

              512 GB SSD sounds like a reasonable minimum for creative work, especially if someone would like to play a game sometime

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                #8
                Originally posted by Doctor Ergot View Post
                512 GB SSD sounds like a reasonable minimum for creative work, especially if someone would like to play a game sometime
                Well that depends on what you consider reasonable as to minimum for creative work. If one is just playing around maybe but for serious work one will need serious storage.
                Clarke's third law: Any sufficiently advanced technology is indistinguishable from magic.
                Custom Map Maker Discord
                https://discord.gg/t48GHkA
                Urban Terror https://www.urbanterror.info/home/

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                  #9
                  Sure thing, an artist working with photogrammetry or Houdini simulation would gladly accept few terabytes of SSD

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                    #10
                    open up swarm agent and change the location of your cache folder
                    every time you build a project it puts the build data in this folder.
                    the standard location is on C drive and can eat GB of space.
                    maximum jobs to keep is how many projects will save data
                    if you build a 6th this is why the first job gets removed to save space
                    and it removes the data from the first build job this is why you need to recompile shaders if you have not opened a
                    project in a long time. i have mine set to 5 because i only have 4 projects i work on.
                    maximum cache size is unknown. i think 10 means 100GB but i could be wrong. I just know
                    that my cache folder usually sits at the size 100GB I moved it to my F Drive that is an SSD.
                    i recommend having it on SSD so build times are faster.

                    Click image for larger version  Name:	Screenshot_3.png Views:	0 Size:	35.4 KB ID:	1703839


                    Also do as FrankieV Said about your VAULT. These are the remaining 2 parts of ue4 that stores data to your C drive.
                    Make sure you change the SwarmCache folder for each of your projects. open a project, build it for windows 64 or something else and swarm agent will open
                    or you can go into the folders and find swarm agent exe and run it.

                    With the vault in the launcher after you add a market place thing to your project click the remove local content to save space also. but it will require re-downloading it again to install to another project. i always remove local content tbh lol


                    With any GAME development you are going to require a bunch of space, for assets, sounds, built projects, test builds backups and programs for modeling/texturing/retopo and tons of other stuff. I suggest getting as many SSD's as you can run in your pc. and upgrade your PSU because the more ssd's/hard drives the more power consumption it will use so hope this helps
                    Last edited by frostic; 01-03-2020, 01:55 AM.
                    Matt Walton: Programmer and owner of WireLiteSoft Games.

                    [Streaming Terrains][WireLiteSoft.us]

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                      #11
                      Originally posted by Nawrot View Post
                      Just get bigger drive, even SSD are getting cheap. And calm down enjoy holidays.
                      This is as unhelpful as possible.

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                        #12
                        Originally posted by tsdouglas1 View Post

                        This is as unhelpful as possible.
                        Really? You think that 250$ for 1 terabyte SSD is too much for indie dev to invest?
                        You want to have hobby (or serious bushiness) and 250$ is too much?!
                        And since original post SSD drives got dirt cheap.

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