Microsoft has been made aware of an issue with a McAfee DAT file update - released Wednesday, April 21, 2010 - that has been causing stability issues on Windows XP client systems. The symptom is caused by a false-positive detection on a core Windows file (svchost.exe). Once the file is quarantined by McAfee, the system may encounter one of the following symptoms:
The DAT file version that that caused the problem is McAfee DAT 5958. This file was propagated to client machines that conduct automatic updates of definition files. McAfee updated the DAT file soon after the problem was identified with a new version that does not cause the problem.
Please review the following KB Articles for specific steps to resolve the issue on systems that are affected.
McAfee KB Article:
Microsoft KB Article:
Microsoft recommends customers affected by this symptom first review the McAfee KB Article referenced above. For further assistance, customers should contact McAfee. Customers who are unable to resolve the issue through these means can contact Microsoft for technical support using resources found on this Web page: http://support.microsoft.com/.