Windows 8.1 または Windows RT 8.1 でオペレーティング システムの情報を見つける. お使いのデバイスで実行中の Windows のバージョンを確認するには、Windows ロゴ キー キー+ Rを押し、[開く] ボックスに「winver」と入力して、[OK] を選択します。 デバイスが Windows 8.1 または Windows RT 8.1 を実行している ...

Method. Used for. Authenticator app. Two-factor verification and password reset authentication. Text messages. Two-factor verification and password reset authentication.

2. Fill out the form using a recognized device and location. If possible, complete the form using a device you previously used to sign into your account and at a location where you commonly use that device and that we'll recognize, such as your home or office.

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

On the General tab, under Home page, enter the URL of the site you want to set as a homepage.You can add more than one URL. Or, to add the site you're currently viewing, select Use current.If you add more than one URL, put each URL on its own line.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

After you set up your security verification methods for your work or school account, you can update the related details. Using the Security info page

A family group is a set of individuals connected through the Microsoft Family Safety app on their Windows, Xbox, or mobile devices. Establishing a family group is an easy, effective way to encourage healthy online habits and manage busy schedules.

Look in the Surface app. The easiest way to find which Surface model you have is to use the Surface app. It shows the model name of your Surface device and each Surface accessory.

If you can’t locate a lost file from your backup, then you can use Windows File Recovery, which is a command line app available from the Microsoft Store.Use this app to try to recover lost files that have been deleted from your local storage device (including internal drives, external drives, and USB devices) and can’t be restored from the Recycle Bin.