The rate of infection ticked up for Windows 7 in the first half of 2012, but Windows XP, Microsoft’s legacy operating system, is still far and away the biggest security headache for the software giant.
According to the recently released
Microsoft Security Intelligence Report (PDF), infections per 1,000 systems running 32-bit versions of Windows XP SP3 were almost double those of 32-bit versions of Windows Vista and Windows 7, Microsoft’s newer operating systems.
