Deleting Local Profile on Windows 7 (Domain Envir)

Windows 7 Pro in a Domain Environment
Internet Explorer 11

We have a customer who requires us to enter inspection data for shipments using their web site.  It is a javascript-intensive site.  We are able to access this site with numerous computers in the building.  However, I am setting up a new workstation for our Quality Administrator and he can't connect to this site.  Attached is a screenshot of the error.

This problem is specific to his profile on his computer.  If I log on as the Domain Admin or any other user, the workstation will connect just fine.  Also, if I log on as him on my workstation, it connects just fine.  I believe the problem may be because of some corruption or missing files having to do with the application in question.  He had made several aborted attempts before we realized the site needed to be added to the Compatibility View for it to work.

I am considering deleting his profile (Remove User in User Management) on the computer in question and let the system build a new profile for him.  I feel fairly confident this will enable him to connect once the system re-builds his profile.  However, I have never deleted a user account and am not sure what all he will lose.  We do not have an Exchange Server so his email is stored in a local Outlook Data file.  I will save a copy of it before deleting the profile.  What else should I do before deleting the profile?
Kerry WilsonNetwork AdministratorAsked:
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JohnBusiness Consultant (Owner)Commented:
There is a local profile on the computer (related to a the domain). Back up information in this profile (and in addition, back up the whole profile to a non Users location). Do both things. Then delete the profile, restart, log in as the user and it will make a new local profile.
Kerry WilsonNetwork AdministratorAuthor Commented:
To are saying to back up the same information twice?  I have no problem with that...just wanted to be sure that is what you are saying.

I clearly understand the second part about backing up the whole profile to a non-Users location.  I'm not clear about your statement "Back up information in this profile."  That seems to be the same thing.  But perhaps there's some system backup command to which you are referring.
JohnBusiness Consultant (Owner)Commented:
Yes I am saying backup up twice. Once as individual folders and once the whole profile.

The reason is some of the information may be protected so reviewing folders will allow you to know if any access issues . Then I just back up the whole thing to be certain.

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Kerry WilsonNetwork AdministratorAuthor Commented:
JohnBusiness Consultant (Owner)Commented:
You are very welcome and I was happy to help.
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Windows 7

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