While the official Windows 7 requirements for installation are a 1GHz processor and 1GB of memory, hackerman1 has proven you really can get a way with less. A lot less in fact. His slowest successful test managed to get Windows 7 running on a Pentium II 266MHz proc with only 96MB of RAM and a 4MB GPU.
It seems that the limit came when he tried to go below 96MB of RAM, receiving an "insufficient memory" error when trying only 64MB of RAM.
Even a Pentium II 266MHz runs Windows 7
Posted on Wednesday, June 24 2009 @ 3:10 CEST by Thomas De Maesschalck