If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Step 1: Sign in with a Microsoft account. This is the account associated with Windows, Microsoft 365, OneDrive, Xbox, and more. Your backed-up information will be stored with your Microsoft account, so getting back to your things on a new PC is as easy as signing in.

Your PC isn't working well and you recently installed an app. Restore from a system restore point. You suspect your device has been infected. Use installation media to reinstall Windows 11. Click one of the recovery options below and follow the steps to try to get things working again.

To create a recovery drive in Windows 11: In the search box on the taskbar, search for Create a recovery drive and then select it. You might be asked to enter an admin password or confirm your choice. When the tool opens, make sure Back up system files to the recovery drive is selected and then select Next.

From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options. Choose the language and bit version you want, and then select Install.

If you already redeemed a product key, you're simply reinstalling the apps, or you know you have an assigned license through work or school, you can skip ahead and go to the section sign in to download and install Microsoft 365 or Office.

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.

To start your refund request, sign in. Collapse all. Why don’t I see my purchase in the list? If you’re not seeing your purchase listed above, we can help you figure out why. See: I don’t see a purchase in my order history. Refund eligibility.

Windows Update troubleshooter. Automatically repair system files and settings to improve device security. Next steps. The device should now be able to update as expected without further steps. Microsoft is working on a resolution to prevent this issue and will provide an update in an upcoming release.

Restoring files from a backup. Restoring files from previous versions. Learn how to recover files that have been lost, deleted, or accidentally changed.