Easy fix is: The biggest chance is that you need to update your drivers because they could be incompatible and you need to fix it by reinstalling them. Lots of people have been complaining about this issue since the Fallout 4 release and the issues are still making troubles.Download them manually (for your GPU, Motherboard and other) or download Driver Scanner or other software to let it scan you computer and reinstall everything. Simplest solution is the If even after this the lags persist then try to set high priority to the game in Task manager.Steam will automatically download the few necessary files.Before playing a game, you may want to verify its cache – in other words, check to make sure all its files are present on your system and aren’t corrupted.That doesn’t mean there aren’t a couple of free gems... If you’re migrating your Steam files to a new computer, copy the Steam folder to an external hard drive (or transfer it over the network), then place it anywhere you like on your new hard drive.
Game gets stuck on loading screen: This happens because of missing / corrupt files.If your primary hard drive is full, and what you've put on there is software, Sym Mover is what you're looking for. Before continuing, you should be aware of a couple things: Windows Explorer is the default Windows file manager.Last week I introduced you to 3 easy ways to improve Windows 7 Explorer by tweaking features and using it to its full potential. Content delivery service Steam is a real money-spinner for Valve, prompting publishers like EA to shy away from it in pursuit of their own system. If you’re placing it on a new hard drive in your existing system, move it to a location like D:\Steam.Often it's because of your Anti-virus program so disable it.Also verify the integrity of game cache files in Steam. It is not an unknown problem and lots of players have it these days not just in Fallout 4.