Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

Découvrez comment installer un scanneur et l’utiliser pour numériser des images et des documents dans Windows 10.

If you don't see your picture at the top of screen, check to see if ad blocking is turned on. Sometimes this prevents the picture from showing. Select Sign out. I want to stop signing in automatically.

Découvrez comment trouver une clé de produit Windows pour l’activation et quand utiliser une licence numérique à la place.

You weren't able to find your username. If the username lookup wasn't successful, try looking for your Microsoft account username within other products or services that you know are associated with that account. Read check your products or services to find out how.

Your desktop icons may be hidden. To view them, right-click the desktop, select View, and then select Show desktop icons.To add icons to your desktop such as This PC, Recycle Bin and more:

Need help setting up an Xbox account or signing in to Xbox on your console, PC, or mobile device? This solution will help you sign in or create a new account.

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.

Learn how to view your PC information on Windows with Microsoft Support's step-by-step guide.