Well, maybe you don't have bluetooth, but Windows might not be aware of it
Anyways, Kernelbase.dll may crash for several reasons: faulty drivers
, bluetooth problems, incompatible applications, incompatible customizations, etc.
Check the device manager (Administrative Tools -> Computer management -> Device Manager) and look for any unusual red or yellow icons indicating problems.
Also check Event Viewer (also in Computer Management) for error messages, there must be many.