Install retail version[8] Install retail version Download and install the latest version of DirectX. Insert the game disc, and ignore any auto play screens. Open the Start Menu and click on “Computer”. Right click on the disc drive that has the game disc and select “Explore”. Right click on setup.exe and select Properties . Click on Compatibility and select the options Run this program in compatibility mode for Windows XP Service Pack 2(SP2) and Run as Administrator. Run setup.exe and install the game as normal (recommended to install outside Program Files). Patch the game. Download the manual patch instead of using the game's auto updater. You can download the patch from LucasArts. Once the patch is downloaded, right click on the file, select “Properties”, and follow the same compatibility settings as done on “setup.exe”. If you own the Star Wars: The Best of PC version of Knights of the Old Republic you do not need to patch the game. Go to the installation folder. Right click on the folder, select “Properties”, un-check “Read-Only”, then click “Apply”. Download the SecuROM updated .exe file from here. This is for the US versions of the game. For international versions, go through the SecuROM support website. Rename the old .exe files before copying the updated ones in the installation folder. If you own the Star Wars: The Best of PC version of Knights of the Old Republic you do not need to replace the .exe. Right click on every .exe file in the installation folders and set the compatibility modes to the same as in step 4. Right click on the “kotor.exe” and select “Create shortcut”. Move the shortcuts to your desktop. If you are using a multi-core computer, you will need to set CPU affinity. Right click on the shortcut and select “Properties”. In the target box, type in: %WINDIR% \System32\cmd.exe /C start "SWKOTOR" /D " <path-to-game> " /high /affinity 1 " <path-to-game> \kotor.exe" This shortcut needs to be set to “Run as Administrator”. However, the "Run as Administrator" box will be greyed out in the Compatibility tab; it must instead be ticked in the Advanced options under the Shortcut tab. To change the icon to the shortcut, click on “Properties” and then “Change icon”. A new box will open. Find the installation folder and select the game .exe. To prevent the command window from popping up briefly while launching, under the shortcut properties change the "Run" mode to "Minimized".