Cada conta do Skydrive está vinculada a uma única conta do MS. Você pode compartilhar arquivos e outros com outros e acessar o site SkyDrive.com de qualquer lugar, mas não fazer login na conta real do SkyDrive com várias contas de usuário do MS (especialmente ao lidar com a versão integrada do Windows 8.1).
A partir do Windows 8 SkyDrive: FAQ :
Do I have to sign in to my PC with a Microsoft account to use SkyDrive?
Yes, you need to sign in with a Microsoft account to browse your SkyDrive and keep your files and settings in sync. If you sign in with a local account, you can only use the SkyDrive app to browse your PC. To browse your SkyDrive files, you'll need to go to SkyDrive.com.
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Can I sign in with a different account to browse a different SkyDrive?
You can't switch between accounts in the SkyDrive app. When you sign in to a PC with your Microsoft account, you're automatically signed in to SkyDrive with that account. You can still get to SkyDrive files for a different account by going to SkyDrive.com.