Adultcamfriend - Steam validating game files stuck
Windows doesn’t “save” CPU affinity between sessions – when you close Steam and reopen it, it will use its default CPU affinity settings.
I've done this before on moving from windows - ubuntu, but it's been stuck at 100% verification for 4 or 5 hours - validating Steam cache files 0 out of 1, validating Team Fortress 2 file 1 out of 1.
I've already tried cancelling and re-validating before, to no avail.
Corrupted files can also cause a multitude of other odd game bugs.
To fix corrupted game files, you can have Steam validate the game’s cache on your system.
However, these download servers can become overloaded – if games are downloading slowly, you may want to change your download server.