Tutorial

Windows uses the C:Program Files directory as the default base directory into which new programs are installed. However, you can change the default installation drive and/ or directory by using a Registry hack.

Run the Registry Editor (regedit)and go to

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersion

Look for the value named ProgramFilesDir. by default,this value will be C:Program Files. Edit the value to any valid drive or folder and windows will use that new location as the default installation directory for new programs.