What to do when Office 365 shows you message “Something went wrong”?

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If you get this error, go to http://support.microsoft.com/kb/2822317/en-us, then download and run Office Troubleshooter.

When you run it it will ask if you want to Apply Fix (of course you want to do that)

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Then wait a while until Office 365 will be removed from the machine.

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Finally you will see information that uninstall was successful.

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And now you can close Office Troubleshooter when Office 365 is removed.

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Now you can install Office 365 again in order to use it.