Yes, we need to know what files were identified/removed.
It's not unusual to receive "Cannot find...
", "Could not run..."
, "Error loading...
or "specific module could not be found
" errors when "booting up" after using anti-virus and other security scanning tools to remove a malware. Even though he never used the computer, an anti-virus may detect what it considers to be Potentially Unwanted Program
that may have been pre-installed on systems made by Dell and other OEM manufacturers. An anti-virus seldom detects a crtical system file, let alone several of them.