Why does Unity ask me to install a fix to Windows when using 64-bit.

Why does Unity ask me to install a fix to Windows when using 64-bit.

I'm running Windows Vista Home Premium - 64 bit and the new version of Unity asks me to install the download at http://support.microsoft.com/kb/976038.

Windows 64 has an issue which is causing frequent random crashes in the Unity editor. We have been able to track this to a problem in Windows which is patched by Microsoft by installing that patch, so we display this message to advise users to install the patch.

I've never had a crash and am also on win7 64 bit.

same here, persistent message, but no crash.