This is a common question that many people are asking. The answer is no, switching from Microsoft account to a local account will not result in any data loss. The Microsoft account is the default for Windows 11 and it can be used to sign in to apps and services on your device. It also syncs your settings, passwords, and other information across all of your devices that are signed in with the same Microsoft account. A local account is an alternative way to sign in to Windows 11 without using a Microsoft account. A local account does not sync settings or passwords across devices and does not require an email address or phone number.