The Microsoft Support and Recovery Assistant works by running tests to figure out what's wrong and offers the best solution for the identified problem. It can currently fix Office, Microsoft 365, or Outlook problems. If the Microsoft Support and Recovery Assistant can't fix a problem for you, it will suggest next steps and help you get in touch with Microsoft support.
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These are very useful services, because very often there are problems with office programs, when your Internet is lost, electricity is turned off or something else, and your files are simply not saved.
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