Make sure your Steam installation is up-to-date.In some cases, it is necessary to uninstall Steam and to manually delete the Steam directory to clear any antivirus locks on important Steam files. In that case, configure any antivirus app to ignore your entire Steam directory and try again.

If you are unable to update Steam, an antivirus app is likely blocking it. You will be presented with a version number and a version date, make sure this date is not older than two months, otherwise you are missing the latest Steam updates. You can verify your Steam version by opening Steam and clicking on Help at the top, afterwards select About Steam. This problem frequently occurs when Steam is extremely outdated. Please make sure your Steam installation is up-to-date. If it still does not work, reinstall Steam and get rid of any antivirus that blocks communication between different programs. The solution is to not run either program as admin, which is the intended way. If you run either Steam or Wallpaper Engine as administrator, the Steamworks SDK in Wallpaper Engine may not work. Make sure it is logged into the account you own Wallpaper Engine on. Wallpaper Engine and Steam are unable to communicate for some reason.

Use the Wallpaper Engine scan tool to create a debug log.

Desktops with Integrated and Dedicated GPU Perform Poorly (dwm.exe).

Performance issues / low FPS with certain games or applications.

Limiting audio visualizers to music players.

Steam workshop not working