How can I back up my Win11 device?

Hi Benedek! My name is David. I am a user of Microsoft products like you, and it is a pleasure to greet you.

Regarding your question, you can choose from several methods depending on what is easiest for you.

1. You can use the File History tool to back up your files to an external drive. To do this, go to Control Panel > System and Security > File History. First, connect the external drive where you want to store the backup. Then, configure your preferences using the options on the left, such as which folders you want to exclude and the destination drive for the backup.
2. If you have enough storage space, you can also use OneDrive to back up your files. Keep in mind that this depends on whether you use OneDrive’s default free space or if you have 1TB of cloud storage as part of an Office 365 subscription. Sign in to OneDrive on Windows with your account, and if it’s your first time using the application, configure the folders you want to sync.
3. You can also manually back up your files. Navigate to "C:\Users", where you will find folders corresponding to each Windows user profile. You can enter these folders and copy the most relevant files yourself.

Let me know if the shared information has been helpful. Regards.