If you have a valid GRANT number, then yes you could do this. But as you have the Agent installed, your computer seems to be managed by an Mcafee EPO server, which also means that you seem to have a company managed computer.
If not, then simply download the vse8.8 with patch 3 file from the GRANT download portal and double click it.
you are right - my computer is a company machine with EPO server.
The problem which I have is on VirtualMachine. On my Host machine I have VSE in version 8.8.
So if it is company computer managed by EPO server I can not download vse8.8 with patch3 and install it?