When trying to access OEM, the following certificate error is displayed in IE9, and clicking on “Continue to this website” does not do anything. One possible cause of this error is a result of installing Windows update KB 2661254 .
To get by this error, run a command prompt as administrator and execute the command shown below. This will enable logging only and not block key lengths of less than 1024 bits.
certutil -setreg chain\EnableWeakSignatureFlags 8
Then restart IE and then you can get by the certificate error.