[RS.com]From The Orange Box: Portal (Full Game 756MB) non-steam

Includes Bonus maps: Challenge maps and Advanced maps. With hints
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories,
Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
The game is designed to change the way players approach, manipulate, and surmise the possibilities in a given environment;
similar to how Half-Life® 2's Gravity Gun innovated new ways to leverage an object in any given situation.
Players must solve physical puzzles and challenges by opening portals to maneuvering objects, and themselves, through space.

DOWNLOAD LINK

http://rapidshare.com/files/116540536/Portal.part01.rar
http://rapidshare.com/files/116541939/Portal.part02.rar
http://rapidshare.com/files/116543524/Portal.part03.rar
http://rapidshare.com/files/116544993/Portal.part04.rar
http://rapidshare.com/files/116546547/Portal.part05.rar
http://rapidshare.com/files/116548077/Portal.part06.rar
http://rapidshare.com/files/116549717/Portal.part07.rar
http://rapidshare.com/files/116551103/Portal.part08.rar
Installation:If you can't figure this one out, please, step away from the computer immediately!
If you get a white screen, here's what to do:
create a shortcut on your desktop to the hl2.exe file in portal directory, then
right-click it and select "properties" and change the target to exactly this:

Installation:
If you can't figure this one out, please, step away from the computer immediately!

If you get a white screen, here's what to do:
create a shortcut on your desktop to the hl2.exe file in portal directory, then
right-click it and select "properties" and change the target to exactly this:

Code:

"C:\Program Files\Portal\hl2.exe" -game portal -window -dxlevel 81 +mat_forcehardwaresync 0

(If you did not accept the default install directory, you know what to do) then apply and OK
when you start the game with this shortcut, it will run in window mode, but should work fine.
You can then go to options and make it full screen again.
After this you can even use the old, original shortcut to run the game.