Na een uurtje of 2 googelen eindelijk de oplossing gevonden!
Moesten er mensen zijn die ook dit probleem hebben, dit is de oplossing:
Quote:
Certain Steam issues may be corrected by renaming the ClientRegistry.blob and restarting Steam.
1) Completely exit from the Steam client.
2) Go to C:\Program Files\Steam (or the Steam directory that was specified during installation).
3) Locate ClientRegistry.blob and rename this file to ClientRegistryOld.blob.
4) Restart Steam to allow the file to be recreated.
5) Test the issue once more.