If you have initially installed Client Security Software (CSS) 5.41 or previous versions, you may have a SMB Device Hub driver (smbusdh.sys) that can cause a Windows Blue Screen error. If you have over-installed CSS 5.42 or later without first removing CSS 5.41 or previous versions, then the SMB Device Hub will not be updated as well.
Lenovo has addressed a SMB Device Hub issue in Client Security Software (CSS) 5.42 release. If you have initially installed CSS 5.42 or later, this information does not apply to you.
Any system running Microsoft Windows 2000 or XP configured initially with Client Security Software (CSS) 5.41 or previous
How to determine if the smbusdh.sys file should be replaced
Click Start, select Settings, click Control Panel.
Click the Hardware tab, then click Device Manager.
Click the + sign next to System Management Bus controllers.
Right-click IBM - SMB Device Hub, then click Properties.
Click the Driver tab, then click Driver Details. The location of the smbusdh.sys file will be displayed, either C:\WINDOWS\system32\drivers\smbusdh.sys or C:\WINNT\system32\drivers\smbusdh.sys, as well as the file version. If the version is less than 6.3.0.02, the file should be replaced.