Simplify the following text for a Grade 7 native English-speaking person.
Original: On January 7 , 2009 , the 64-bit version of the Windows 7 Beta ( build 7000 ) was leaked onto the web , with some torrents being infected with a trojan .
Simplified: On January 9th 2009 , build 7000 was released as a public beta . According to the engineering Windows 7 team , they had a lot of feedback from users .