From Jan.15 to Jan.21, a hot-fix KB that related to System Center 2012 was released.
2801987 Installation error 0x800b0101: System Center 2012 Configuration Manager Service Pack 1 client
2801185 How to enable debug logging in System Center 2012 Virtual Machine Manager SP1
Best Regards,
Content Team
Please, add to list this article
support.microsoft.com/.../2801185
Updated. Thank you, Denis