Ue4/ue5 C disk enlargement processing

Hello everyone , Maybe many novices use UE4 When I find out C The plate is getting smaller and smaller , That's because UE4 The cache file of the engine is saved in by default C Because of the plate .
Now let's tell you how to solve this problem .

summary

One 、 What happened ：UE4 The cache file will cause C Disc expansion ！
Two 、 The solution ： Please strictly follow the following steps

1. change UE4 Cache path for
2. Delete UE4 stay C Disk cache
3. Delete each engine version SwarmAgent（ Build online ） The cache file

perform

One 、 change UE4 Cache path for
This step is to put UE4 The cache path for is from C Convert the disk to the current file of your project . This is for the sake of ：

1. increase C Disk space
2. It is convenient for later project management , such as ： For a project completed last year, the cache of this project can be deleted separately to increase disk space , Does not affect the current project .

Open your engine folder as shown in the figure

Then select the version you need to modify , If you need to stop the engine C The disk generates any cache , Please modify each corresponding version once .
Then use Notepad to open ： Engine version \Engine\Config\BaseEngine.ini
take

1 Local=(Type=FileSystem, ReadOnly=false,Clean=false, Flush=false, PurgeTransient=true, DeleteUnused=true,UnusedFileAge=34, FoldersToClean=-1, Path="%ENGINEVERSIONAGNOSTICUSERDIR%DerivedDataCache")

Replace with
1 Local=(Type=FileSystem, ReadOnly=false,Clean=false, Flush=false, PurgeTransient=true, DeleteUnused=true,UnusedFileAge=34, FoldersToClean=-1,Path="%GAMEDIR%DerivedDataCache")

Remember to save the document . Okay , After this modification, reopen your project, and the cache path will be generated in your project folder , Pictured ：


Two 、 Delete UE4 stay C Disk cache
When doing this step, please make sure that you have completed the first step
Then please turn on the show hidden file function
Then delete the cache ：C:\Users\ Your username \AppData\Local\UnrealEngine\Common\DerivedDataCache
3、 ... and 、 Delete online build SwarmAgent Program cache
It will open automatically when the engine is built SwarmAgent Program , At this time Cache First change the path of the file to the drive letter with large space ,（PS： If the engine is not built, it starts automatically SwarmAgent Program , It's useless to modify it in the engine directory by yourself ）

Because many people may not have changed the cache path when they first used it , Even some are C Inside the plate , Then we can find and delete . Path as follows ：C:\Users\ Your username \AppData\Local\UnrealEngine\4.2X（ Versions ）\Saved\Swarm\SwarmCache.