One benefit of signing in to your PC with a Microsoft account is that you can sync info between any PCs you use that are also running Windows 8.1 or Windows RT 8.1.
When you sign in with a Microsoft account, your PC is connected to Microsoft servers online, or "the cloud." This means that your personal settings and preferences are stored in OneDrive, and are synced to any PC that you sign in to. For example:
Your Start screen layout, chosen colors, themes, language preferences, browser history and favorites, and Windows Store app settings are synced between PCs.
You can get to and share your photos, documents, and other files from OneDrive, Facebook, Flickr, and other services on all your PCs without signing in to each one.
If you want to keep some of your personal settings more private, you can turn off syncing for specific settings, or turn off syncing entirely.
If you're having problems syncing your settings, you can try running the Microsoft Accounts troubleshooter. It's an automated tool that can find and automatically fix some syncing problems.
Although the Microsoft Accounts troubleshooter works in all languages, it's only available in English.
Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings.(If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, click Settings, and then click Change PC settings.)
Tap or click OneDrive, and then tap or click Sync settings.
Under the different settings categories, turn off the settings you no longer want to sync.
Under the Sync settings with OneDrive heading, turn off Sync your settings on this PC.
When you turn off syncing between PCs running Windows 8.1 and Windows RT 8.1, some of your system and app settings will remain stored in the cloud. If you want to remove them, you must do so separately. To learn how, go to Delete your personal settings from the cloud and sign in to your account.
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