使用中の Windows オペレーティング システムのバージョンを確認する - Microsoft サポート
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 ...
Download and Install or Reinstall Office 365 or Office 2019 on a PC or Mac
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Help with the Microsoft account recovery form
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.
Office にサインインする - Microsoft サポート
Web ブラウザーから www.office.com にサインインして、Web 上のアプリの使用を開始するか、OneDrive などのアカウントに関連付けられている他の Web サービスにアクセスします。. インストールされている Office アプリにサインインする方法は、デバイスによって異なります。
Applies To:
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Upgrade to Windows 10: FAQ - Microsoft Support
An upgrade moves your PC from a previous version of Windows—such as Windows 7 or Windows 8.1—to Windows 10. An upgrade can take place on your existing device, though Microsoft recommends using Windows 10 on a new PC to take advantage of the latest features and security improvements.
エクスプローラーを見つけて開く - Microsoft サポート
世の中の多くの優れたものと同様に、エクスプローラーも時代と共に進化しています。 Windows 10でチェックするには、タスク バーまたはスタート メニューでそのアイコン を選択するか、キーボードの Windows ロゴ キー + E キー を押します。. Windows 10 の特に重要な変更点を次に示します。
Faster and more secure Wi-Fi in Windows - Microsoft Support
Tip: You can also check to see what your network adapter supports by opening the Command Prompt (or Terminal), and then typing the command netsh wlan show drivers.Look next to Radio types supported and see if it includes 802.11be (for Wi-Fi 7) or 802.11ax (for Wi-Fi 6/6e) and look under Authentication and cipher supported in infrastructure mode and see if it includes WPA3 Personal and WPA3 ...
Contact - Microsoft Support
Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2
Update Windows - Microsoft Support
Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.
Disk cleanup in Windows - Microsoft Support
Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.