Hotfix for Windows 7 SP1 Random Freeze when Memory Usage is High issue is released
Microsoft has released an hot fix for Random Freeze when Memory Usage is High issue in Windows Seven SP1 which is mentioned in the Knowledge base article KB2575077 which impacts the customers running Windows Seven and Windows Server 2008 R2 .
According to the Knowledge base article
A computer that is running Windows Server 2008 R2 or Windows 7 randomly stops responding. The issue typically occurs when the memory usage is high and when the memory manager performs frequent paging in and paging out actions.
Note You can use the Memory\Page Faults/sec performance counter to track the paging in and paging out frequency.
The fix can be downloaded here
Know more about the Computer randomly stops responding because of a deadlock situation in Windows Server 2008 R2 or in Windows 7 from the Knowledge Base article KB2575077