Validating game files steam
Browse to the HKEY_CURRENT_USER\Software\Microsoft\Windows NT\Current Version\App Compat Flags\Layers key in the registry editor and delete any values associated with Steam.
You’ll find this file in your Steam directory – C:\Program Files (x86)\Steam by default.
However, these download servers can become overloaded – if games are downloading slowly, you may want to change your download server.
You can view each download server’s load on the Steam Content Server Status page. To change your download server, click the Steam menu and select Settings.
Steam is generally pretty stable, but every now and then you’ll run into a problem.
This guide gives solutions to common problems you’ll encounter in Steam, from games crashing or not working properly to Steam failing to launch.