Windows - large disk space usage in AppData folder

Hi
I know that Unity stores downloaded Assets in the AppData\Roaming\Unity\Asset Store-5.x folder. But I notice that there is another folder in AppData\LocalLow\Unity\Caches. I only have 1 unity project on my system that is about 2GB big, and then about 1.5GB of downloaded assets. The AppData\LocalLow\Unity\Caches is currently 10GB big.

Does anyone know the purpose of this folder? Is it ok to delete the files in the AppData\LocalLow\Unity\Caches folder to save on disk space? It might have reached 10GB simply because of a number of test projects I created before.

Any advice will be appreciated.

 

I think it stores temporary changes, specially when you are working on terrains and stuff which require high GI cache.
If it is taking large space in c drive you can assign a custom folder for GI cache.

Go to : Edit > Preferences > GI Cache >click Custom location checkbox > assign location

 

I have purchased the assets about 10 times a hour,and I'm a new user. What could I do for this situation???

 

Go to

C:\User\Name\AppData\Roaming\Unity\Asset Store-5.x

delete the assets not required