In order for you to play Tomb Raider - The Final Hours Digital Book on Windows with minimal graphics settings, your computer must meet the following requirements
Minimum:
Operating System:
Microsoft® Windows® XP Home, Professional, or Tablet PC Edition with Service Pack 3; Windows Server® 2003 or 2008; Windows Vista® Home Premium, Business, Ultimate, or Enterprise (including 64-bit editions) with Service Pack 2; or Windows 7
Processor (CPU):
2.33GHz Intel® Pentium® 4, AMD Athlon® 64 2800+, or faster processor
Memory (RAM):
512 MB RAM