This is on Windows 7 and Windows 10 fully patched systems.
Unable to find a valid repository..
System was rebooted,
This error can have different causes, depending where the failure occurred, examples:
Error occurred while downloading the file SiteStat.xmlUnable to find a valid repository
Error occurred while verifying catalog.z Unable to find a valid repository
therefore more info is necessary to be able to assist.
start by checking the following logs:VirusScan Enterprise Update.log McAfee Agent mcscript.log
this article provides an explanation of files that may be downloaded during VirusScan Enterprise (VSE) updates: https://kc.mcafee.com/corporate/index?page=content&id=KB54467