How are you launching Steam exactly?

Manual every time you boot up?

Steam in Windows Startup?

How do you create your Steam folder or library folder?

install steam on the os drive, and put its games library on the 2nd drive

It's not this. It's something else.
Like how the Steam and/or Steam Library folder was made in the first place. Did it already come from another PC befor.


But yes should have Steam on C Drive and then configure it for more then one Library

If a game update ia 40GB and the game was 120GB. The free space MIGHt need to be around the full size of that game or more, in order to update because it's going to copy over game files and inject the update.

For these large games like STALKER2 it's easier and faster that when there is large update to wipe out the game files and then verify the game. Now it downloads full game and will be latest version now by default. Trying to update, let's say a 120GB game with a 40GB+ update takes way longer. And it's stressing your drives more too. Cause it has to do double the work to do an update as opposed to just wipe game files and download fully updated game fresh

this suggests that your system drive have too little space. only thing you can do is to move as much as you can to another drive.

Originally posted by andreasaspenberg575:

this suggests that your system drive have too little space. only thing you can do is to move as much as you can to another drive.

Steam can use any available drive to perform game updates if it's configured for multiple Libraries

What does the OP mean by plenty of space? Considering how much space Steam can use when updating and the size of some games their definition of plenty of space may not mean much.

Originally posted by Marazipan:

What does the OP mean by plenty of space? Considering how much space Steam can use when updating and the size of some games their definition of plenty of space may not mean much.

Despite having 2x 2TB; most likely is low on free space if the game won't update, but doing a wipe + redownload of the game works fine.