Williams (concussion) was a full participant at the Packers' practice Thursday, Rob Demovsky of ESPN.com reports.
Williams was able to increase his participation at practice Thursday after opening the week with a limited session Wednesday. The safety has yet to clear concussion protocol according to Matt Schneidman of The Athletic, but Thursday's practice is a massive step forward. Williams will look to clear protocol in time to play in Sunday night's matchup with the Seahawks.