Manage your Microsoft 365 subscription or Office product. You can manage all of your Microsoft subscriptions in your Microsoft account dashboard. Select each subscription to change when and how you pay, or to see order history & receipts. Choose your account type.

Install Microsoft 365 2019 or 2016 on a PC. Remember a one-time purchase version of Microsoft 365 is licensed for one install only. Depending on your browser, select Open file (in Edge or Internet Explorer), Setup (in Chrome), or Save File (in Firefox).

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. There are three methods to which you can activate your product: Online via the internet, by telephone using our automated systems, and by a live support advocate.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track. Run the System File Checker tool (SFC.exe)

Remote Assistance Support from Microsoft allows a Microsoft support professional in another location to view your computer screen and work on your computer over a secured connection. Protect yourself from tech support scams. Before clicking 'I accept', review the: By selecting the ‘I accept’ option of Remote Assistance support from ...

To see what Office for home products you have a license for, sign in with your Microsoft account to Services & subscriptions.

To fix the issue, download and install the latest Microsoft Office 2016 Volume License Pack (16.0.4324.1002). Describes an issue that triggers a "specified Key Management Service (KMS) cannot be used" error when you try to activate an Office 2016 volume-licensed client. A workaround is provided.

If you're troubleshooting Office and would like to remove the license files on your Mac, you can use the license removal tool. This will completely remove all licenses for Microsoft 365 for Mac.

Transfer your Office license to another device or another person. You can install a one-time purchase of Office such as Office Home & Business, Office Home & Student, or Office Professional Office on only 1 PC or Mac.

To learn what version you have, see Find details for other versions of Office. Learn how to check what version of Office your using. Find your product name and version number of Office apps.