Diablo® III

Unexpected error while trying to install.

I've had the game installed for months. Yesterday it worked just fine. Today I got home after work and when I start Diablo 3 I get "An unexpected error occured while trying to install. Please try again or contact Customer Support."
What do I do?
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Support Forum Agent
Posts: 42,826

Could you try what's described in the following article please?

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Thanks helped. :]
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