ROBLOX is not working problem

There are several things that can cause ROBLOX to not work
1. If your server and client PC's have a virus you might encounter errors installing the ROBLOX.
2. If there are old ROBLOX files on your client PC's and the installer cannot overwrite the said old files.
Below are the fix to make ROBLOX run again.
1. If your server already have a virus we highly suggest to contact our technicians to either remove the virus or re setup your diskless server.
2. Other thing you can do is to install AVAST Anti Virus, this AV usually removes the shortcut virus that is preventing the ROBLOX installation, make sure to run a full scan on your SERVER, quarantine and remove the virus found on your server, then restart.
3. If there are old folders preventing ROBLOX to be installed on your client machines we suggest doing the following steps below.
  - Go to %appdata% > Local, then delete the existing Roblox folder.
  - Go to C:/ProgramData/ then delete the Roblox folder too.
  - After the steps above try to install ROBLOX again from their official website, https://roblox.com