I have found the correct way to install the portal game on the faster way. This is the perfect solution I got and I must tell you this process. First open my computer and then right click on DVD drive. The next step is to be choosing "explore" option. Finally open the "setup.exe" file by double click on that. This process installs game in 20 minutes in place of 2 hours. What should you think guess. Any think will be appreciated.
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