
Faulhaber noted that Windows 7 64-bit is the dominant flavor of that new OS as he touted its security. Windows 7, which was not included in the data for the first half of this year because it had not been released in final form, also is available in both 32- and 64-bit editions. According to Microsoft’s data, the 64-bit version of Windows XP was 48% less likely to be infected than the 32-bit edition during the first half of 2009 PCs running Vista 64-bit, meanwhile, were 35% less likely to be infected than Vista 32-bit. “64-bit malware is still exceedingly rare in the wild.”įaulhaber cited statistics gleaned from Microsoft’s Malicious Software Removal Tool (MSRC), a free malware detection and deletion utility the company updates and pushes to users monthly.

“64-bit Windows has some of the lowest reported malware infection rates in the first half of 2009,” said Joe Faulhaber of the Microsoft Malware Protection Center in a post to the group’s blog yesterday. Windows users running 64-bit versions of the operating system are less likely to get infected by attack code, Microsoft’s security team said yesterday.īut that doesn’t mean they won’t, countered an outside security researcher.
