Moved from Home and Home Office to Business > VirusScan Enterprise for better attention.
Please check where the %TEMP% or %TMP% system/user variables point, and if that is an existing location.
If yes, please set LogLevel to 8 on one of the problem server (see https://kc.mcafee.com/corporate/index?page=content&id=KB56207&actp=search&viewlo cale=en_US&searchid=1285139241611 )
Let the managed update task run, do not run AutUpdate.
Please post here agent_computername.log and McScript.log from this server.