Reading App Builder installation problems - Windows 8.1

I can’t go online to the RAB forum, so I’m sending this by email.

I installed RAB on a user’s computer a few days ago. It was working. This morning she told me it won’t open. She deleted "something and when I saw her computer, she had the RAB program folder open.

She is running Windows 8.1

Her SDK folder was messed up, but I fixed it. I reinstalled JDK and even reinstalled RAB. SAB and DAB open fine, but nothing happens when we click the RAB icon on the desktop or from programs menu. Disabling firewall doesn’t make a difference.

I’ve tried RAB 4.3, 4.4, and 4.5. None of them open.

Any suggestions