03-11-2014 10:02 AM
Welcome to the HP Forums!
For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I am sorry, but to get your issue more exposure, I would suggest posting it in the commercial forums, since this is a commercial product. You can do this at The HP Commercial Forum
In the mean time here is a link to the HP ProBook 4540s Notebook PC Support page.
I hope this helps.
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