Currently, ROBLOX is only available on PCs running the Windows® operating system
ROBLOX is already installed on this computer. If you want to try installing it again then
follow the instructions below. Otherwise, you can just continue.
A window will open asking what you want to do with a file called Setup.exe.
Click 'Run'. You might see a confirmation message, asking if you're sure you want
to run this software. Click 'Run' again.
the Setup Wizard
When the download has finished, the ROBLOX Setup Wizard will appear and guide you
through the rest of the installation.