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Microsoft - Wikipedia Microsoft Corporation is an American multinational technology conglomerate headquartered in Redmond, Washington The company became influential in the rise of personal computers through software like Windows and has since expanded into areas such as Internet services, cloud computing, artificial intelligence and video gaming among others
Sign in to Microsoft 365 For Microsoft 365 or Office apps installed on a Windows PC: If you're not already in a Microsoft 365 or Office file or document, open an app such as Word or Excel, and open an existing file, or create a new one Select File > Account (or Office Account if you're using Outlook) If you're not already signed in, click Sign In In the Sign in window, type the email address and password you use
Contact Microsoft customer support Contact Microsoft customer support The type of support Microsoft provides depends on the product you're calling about and if you have a product for home or for business use It can also depend on if you want help for an issue with a service like OneDrive or Outlook com, or help with Windows, but you don't have an existing Microsoft 365
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