Hi ACS4500
The error message is not related to an infection so running the Norton Power Eraser is not really necessary but at the end of this post is a safe way to use it.
Try a full scan in normal mode?
Have you or have you ever had any other security software including any trial security software on the computer including Norton? If so what is it?
Can you check in windows add/remove programmes, programme data and programme files for any security software that may have been bundled in a download?
What trial security software came with the computer?
It is recommended that there is 10% free space on the hard drive, can you check this?
yanK has previously mentioned the links below which point to updates, can you confirm that you have performed these two tasks?
https://support.norton.com/sp/en/us/home/current/solutions/v63797269_EndUserProfile_en_us
The link below is from the link above and is at the end of the page where is says, what if this didn’t work.
https://support.norton.com/sp/en/us/home/current/solutions/kb20080409124354EN_EndUserProfile_en_us
The Norton power eraser can detect files needing deletion, that may then cause the operating system to fail so if you run the Norton power eraser, and are not sure about the files, copy and paste the log files that it produces then create a new thread asking what should be deleted. Choose not to delete any files unless you know what you are doing.
Norton power eraser download link below.
http://www.symantec.com/norton/support/DIY/index.jsp
You might like to backup the personal data and you’ll need to backup or export in both formats your identity safe and any other users identity safe if it is used, before doing the above.
ATB
intesec