Error 0x80070426Windows Activation Error, Error Code 0x80070426? for windows 7 after adjusting someservices list

Windows Activation Error, Error Code 0x80070426?

I've been running windows 7 home for nearly a year now. Genuine copy, activated, no issues whatsoever. Last night I went through my Services list and disabled some of them. My plan was to speed up the computer and free up memory by not having them run. I scheduled a disk check and restarted my computer. The disk check ran and found no errors, and when I tried to login this morning I got a Windows Activation Error window with the above error code. Since this copy of Windows has been installed on this computer and validated for so long, why would I be getting this message? If I click on the "More Information" link it shows an error dialog that says, "The service has not been started."

Even I am unable to connect to internet,pc sound system.Does anybody know which service is causing this error? Maybe I disabled the wrong one by accident (oops!). Pl advice if anybody knows the solution???

thanks

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