Anti-virus updates are sent to McAfee for many enterprises IT managers have isolated a Windows system file is vital. McAfee confirmed, beginning on 4/21/2010 they have pushed the update "sticky" user error, crippled many PCs with Windows XP. A spokesman Joris Evers of the company, said the problem occurred with virus definition file 5958 (DAT) is released. According to some users on the McAfee support forums, the update DAT files have been quarantined "svchost.exe" of Windows.

McAfee's support forums were "collapsed" due to large traffic. However, both the user and McAfee have said, DAT crippled computers installed Windows XP Service Pack 3 and not affect the PC running Vista or Windows 7. "What our preliminary investigations showed that the error may moderate the impact to performance issues on systems running Windows XP SP3," said Evers acknowledged. The affected PC will fail to shutdown or a blue screen error, then the cycle will go into endless reboot, the user confirms.

McAfee recommends users not to download updates if they have downloaded on DAT, and post recovery guide for people "was the last" previously installed "for the system was having problems, please Boot the computer in Safe Mode and run EXTRA.DAT After running EXTRA.DAT recovery (restore) files from Quarantine affected. Users can access the guide, EXTRA.DAT files from McAfee's website.