To fix An error occurred while starting Roblox Studio, Studio details failed to create key or deploy, Reset your Router, Reset TCP-IP, Disable proxy settings, etc.

If you get the 'Your browser is not supported' error on Roblox, first reset the settings of your browser, and then disable the Firewall.

If you get the Failed to create directory message with error=3 when starting Roblox on your Windows PC, use these proven fixes.