Clear Steam Download Cache

Steam also has the ability to accumulate too many unnecessary applications or caches, causing too much space to accumulate, and preventing the addition and functionality of necessary applications. In this case, clearing Steam's download cache should fix the problem.

Here's how:

1. Launch the Steam application.
2. Open Steam > Settings.
3. The dialog box on the left > click Downloads.
4. Click the Clear Download Cache button > confirm the action.
5. Restart Steam > Check to see if the problem is resolved.