Do you have any add-ons in your Community folder? If yes, please remove and retest before posting. No. Are you using Developer Mode or made changes in it? No Brief description of the issue: I have just built a new machine but I’m unable to install the sim from the store. Provide Screenshot(s)/…

Correct. About 8Gb will go to C. The in-game installer is where you can point to the other drive.