Notes: If you know your password, but just want to change it, go to account.microsoft.com Security tab, and select Change my password. If you know your username and password but they have stopped working, read My username and password have stopped working.

Note: If it’s been fewer than 10 days since you upgraded to Windows 10, your previous version of Windows will be listed as a system file you can delete.If you need to free up drive space, you can delete it, but keep in mind that you'll be deleting your Windows.old folder, which contains files that give you the option to go back to your previous version of Windows.

Types of info. What will be deleted. Where it's stored. Browsing history. The URLs of sites you've visited, and the dates and times of each visit. On your device (or, if sync is turned on, across your synced devices)

Where can I find my BitLocker recovery key? BitLocker likely ensured that a recovery key was safely backed up prior to activating protection. There are several places that your recovery key may be, depending on the choice that was made when activating BitLocker:

ヒント: OneDrive アイコンが表示されない場合は、OneDriveが実行されていない可能性があります。 [スタート] をクリックして、検索ボックスに「OneDrive」と入力し、検索結果の OneDrive をクリックします。 OneDrive のアイコンが表示されていない場合は、通知領域の横の [隠れているインジケーターを ...

On another Windows PC or other device, connect to Wi-Fi as you normally would, and enter your Wi-Fi password when prompted. For more info about connecting to Wi-Fi, see Connect to a Wi-Fi network in Windows.

Note: If you are in tablet mode, you may not be able to see your desktop icons properly.You can find the program by searching for the program name in File Explorer. To turn off tablet mode, select action center on the taskbar (next to date and time), and then select Tablet mode to turn it on or off.

Learn how to use the cloud-based clipboard in Windows, share clipboard items across your devices, and pin items to your clipboard menu.

Uninstall from the Start menu. Select Start > All apps and search for the app in the list shown.

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.