Microsoft account help and support. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile.

注: Windowsでドライバーの更新プログラムを取得する最も安全で安全な方法は、常にWindows Updateです。Windows Updateに問題がある場合は、Update Windowsのリンクのいずれかが最初に役立つかどうかを確認できます。

Billing & payments. Your dashboard is also where you can: Buy, renew, or cancel a subscription.

If these steps didn't work, or you have other account sign in issues, use our Sign-in helper tool. Microsoft account security info & verification codes. How to help keep your Microsoft account safe and secure. Change or reset your Windows password. Accessing the account of someone who has died

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

Notes: If you don't see Go to Microsoft Store on the Activation page, contact your organization's support person.. If you made a substantial hardware changes to your device (such as replacing the motherboard) and you have a valid product key, try to activate Windows by phone.

If your touchpad isn’t working, it may be a result of a missing or out-of-date driver. Updating or reinstalling your touchpad drivers in Device Manager may help solve the problem. To open Device Manager, enter device manager in Search on the taskbar, then select Device Manager .

There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results.

To turn off your PC in Windows 10, select the Start button, select the Power button, and then select Shut down.. I'm having trouble opening the Start menu

These steps apply only to Office Professional Plus, Visio Professional, or Project Professional. Step 1: Start an Office app, like Word, Project, or Visio, depending on your purchase.. Step 2: In the Sign in to set up Office window, select I don't want to sign in or create an account (it's a small link at the bottom of the window).. Step 3: Enter your Office product key, without hyphens.