Just do this:
1.Click the Start button Link Removed - Invalid URL, click All Programs, and then click Accessories.
2.Right-click Command Prompt, and then click Run as administrator. Link Removed - Invalid URL In the User Account Control window, verify that Program name is Windows Command Processor, and then click Yes.
3.In the Administrator: Command Prompt window, type or paste the following text at the prompt: reg delete HKLM\SOFTWARE\Microsoft\SQMClient\Windows\Disabled Sessions /va /f
4.Press Enter to install the solution.
5.If The operation completed successfully displays, close the Administrator: Command Prompt...